diff --git a/projects/VC90/Array/Array.vcproj b/projects/VC90/Array/Array.vcproj
index 96389280..4fafadb7 100644
--- a/projects/VC90/Array/Array.vcproj
+++ b/projects/VC90/Array/Array.vcproj
@@ -45,7 +45,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -112,7 +112,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -177,7 +177,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -241,7 +241,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/DEM/DEM.vcproj b/projects/VC90/DEM/DEM.vcproj
index bb6b6a1b..0094b5d8 100644
--- a/projects/VC90/DEM/DEM.vcproj
+++ b/projects/VC90/DEM/DEM.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/DemChop/DemChop.vcproj b/projects/VC90/DemChop/DemChop.vcproj
index a1745069..3856b178 100644
--- a/projects/VC90/DemChop/DemChop.vcproj
+++ b/projects/VC90/DemChop/DemChop.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/GenOutput/GenOutput.vcproj b/projects/VC90/GenOutput/GenOutput.vcproj
index b3632058..16520928 100644
--- a/projects/VC90/GenOutput/GenOutput.vcproj
+++ b/projects/VC90/GenOutput/GenOutput.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/Geometry/Geometry.vcproj b/projects/VC90/Geometry/Geometry.vcproj
index 0ccdd956..b169c07b 100644
--- a/projects/VC90/Geometry/Geometry.vcproj
+++ b/projects/VC90/Geometry/Geometry.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/HGT/HGT.vcproj b/projects/VC90/HGT/HGT.vcproj
index e4287d20..48d2ab4c 100644
--- a/projects/VC90/HGT/HGT.vcproj
+++ b/projects/VC90/HGT/HGT.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/Match/Match.vcproj b/projects/VC90/Match/Match.vcproj
index 3146ca29..384ae2b3 100644
--- a/projects/VC90/Match/Match.vcproj
+++ b/projects/VC90/Match/Match.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/Optimize/Optimize.vcproj b/projects/VC90/Optimize/Optimize.vcproj
index e48cfa69..9b794af3 100644
--- a/projects/VC90/Optimize/Optimize.vcproj
+++ b/projects/VC90/Optimize/Optimize.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/Output/Output.vcproj b/projects/VC90/Output/Output.vcproj
index 26887916..3619c370 100644
--- a/projects/VC90/Output/Output.vcproj
+++ b/projects/VC90/Output/Output.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/Polygon/Polygon.vcproj b/projects/VC90/Polygon/Polygon.vcproj
index 8ed6cc3a..7ca85a61 100644
--- a/projects/VC90/Polygon/Polygon.vcproj
+++ b/projects/VC90/Polygon/Polygon.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/Terra/Terra.vcproj b/projects/VC90/Terra/Terra.vcproj
index a1525dd4..10e436aa 100644
--- a/projects/VC90/Terra/Terra.vcproj
+++ b/projects/VC90/Terra/Terra.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -124,7 +124,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -202,7 +202,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -281,7 +281,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/TriangleJRS/TriangleJRS.vcproj b/projects/VC90/TriangleJRS/TriangleJRS.vcproj
index 0e4e8963..35725ea3 100644
--- a/projects/VC90/TriangleJRS/TriangleJRS.vcproj
+++ b/projects/VC90/TriangleJRS/TriangleJRS.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;NO_TIMER;TRILIBRARY;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;NO_TIMER;TRILIBRARY;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;NO_TIMER;TRILIBRARY;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;NO_TIMER;TRILIBRARY;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/Triangulate/Triangulate.vcproj b/projects/VC90/Triangulate/Triangulate.vcproj
index daa47237..43d12c5a 100644
--- a/projects/VC90/Triangulate/Triangulate.vcproj
+++ b/projects/VC90/Triangulate/Triangulate.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/clipper/clipper.vcproj b/projects/VC90/clipper/clipper.vcproj
index 0599c16d..20c92efb 100644
--- a/projects/VC90/clipper/clipper.vcproj
+++ b/projects/VC90/clipper/clipper.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/deminfo/deminfo.vcproj b/projects/VC90/deminfo/deminfo.vcproj
index a460366e..f550df55 100644
--- a/projects/VC90/deminfo/deminfo.vcproj
+++ b/projects/VC90/deminfo/deminfo.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/e00/e00.vcproj b/projects/VC90/e00/e00.vcproj
index 4e7f2ed6..a35e89d4 100644
--- a/projects/VC90/e00/e00.vcproj
+++ b/projects/VC90/e00/e00.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/e00lines/e00lines.vcproj b/projects/VC90/e00lines/e00lines.vcproj
index ee649c99..e7c43914 100644
--- a/projects/VC90/e00lines/e00lines.vcproj
+++ b/projects/VC90/e00lines/e00lines.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/fgfs-construct/fgfs-construct.vcproj b/projects/VC90/fgfs-construct/fgfs-construct.vcproj
index 838399c6..6f8769b2 100644
--- a/projects/VC90/fgfs-construct/fgfs-construct.vcproj
+++ b/projects/VC90/fgfs-construct/fgfs-construct.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS;DEFAULT_USGS_MAPFILE=\&quot;usgsmap.txt\&quot;;DEFAULT_PRIORITIES_FILE=\&quot;default_priorities.txt\&quot;"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS;DEFAULT_USGS_MAPFILE=\&quot;usgsmap.txt\&quot;;DEFAULT_PRIORITIES_FILE=\&quot;default_priorities.txt\&quot;"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS;DEFAULT_USGS_MAPFILE=\&quot;usgsmap.txt\&quot;;DEFAULT_PRIORITIES_FILE=\&quot;default_priorities.txt\&quot;"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS;DEFAULT_USGS_MAPFILE=\&quot;usgsmap.txt\&quot;;DEFAULT_PRIORITIES_FILE=\&quot;default_priorities.txt\&quot;"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/fgfs-tools-clients/fgfs-tools-clients.vcproj b/projects/VC90/fgfs-tools-clients/fgfs-tools-clients.vcproj
index 90c7a5f1..ed6ab4aa 100644
--- a/projects/VC90/fgfs-tools-clients/fgfs-tools-clients.vcproj
+++ b/projects/VC90/fgfs-tools-clients/fgfs-tools-clients.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/fgfs-tools-server/fgfs-tools-server.vcproj b/projects/VC90/fgfs-tools-server/fgfs-tools-server.vcproj
index 3298c464..a883ab35 100644
--- a/projects/VC90/fgfs-tools-server/fgfs-tools-server.vcproj
+++ b/projects/VC90/fgfs-tools-server/fgfs-tools-server.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/fillvoids/fillvoids.vcproj b/projects/VC90/fillvoids/fillvoids.vcproj
index 65c3810f..e551a9e7 100644
--- a/projects/VC90/fillvoids/fillvoids.vcproj
+++ b/projects/VC90/fillvoids/fillvoids.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/genapts/genapts.vcproj b/projects/VC90/genapts/genapts.vcproj
index 40b75a30..bc1fc710 100644
--- a/projects/VC90/genapts/genapts.vcproj
+++ b/projects/VC90/genapts/genapts.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/gshhs/gshhs.vcproj b/projects/VC90/gshhs/gshhs.vcproj
index 80fb8a46..5f0b1242 100644
--- a/projects/VC90/gshhs/gshhs.vcproj
+++ b/projects/VC90/gshhs/gshhs.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="false"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="false"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/hgtchop/hgtchop.vcproj b/projects/VC90/hgtchop/hgtchop.vcproj
index 22d667ac..9305104b 100644
--- a/projects/VC90/hgtchop/hgtchop.vcproj
+++ b/projects/VC90/hgtchop/hgtchop.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/landcover/landcover.vcproj b/projects/VC90/landcover/landcover.vcproj
index b8b8ff25..2e664090 100644
--- a/projects/VC90/landcover/landcover.vcproj
+++ b/projects/VC90/landcover/landcover.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/libTerra/libTerra.vcproj b/projects/VC90/libTerra/libTerra.vcproj
index 9b73b0f6..8f123a8c 100644
--- a/projects/VC90/libTerra/libTerra.vcproj
+++ b/projects/VC90/libTerra/libTerra.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/noaa-decode/noaa-decode.vcproj b/projects/VC90/noaa-decode/noaa-decode.vcproj
index 3c91fcd4..9aae30db 100644
--- a/projects/VC90/noaa-decode/noaa-decode.vcproj
+++ b/projects/VC90/noaa-decode/noaa-decode.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/ogr-decode/ogr-decode.vcproj b/projects/VC90/ogr-decode/ogr-decode.vcproj
index aaee7cde..8adcfd7c 100644
--- a/projects/VC90/ogr-decode/ogr-decode.vcproj
+++ b/projects/VC90/ogr-decode/ogr-decode.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/osgb36/osgb36.vcproj b/projects/VC90/osgb36/osgb36.vcproj
index c1ba2b35..c5df312e 100644
--- a/projects/VC90/osgb36/osgb36.vcproj
+++ b/projects/VC90/osgb36/osgb36.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/poly2ogr/poly2ogr.vcproj b/projects/VC90/poly2ogr/poly2ogr.vcproj
index 927df5ce..de9bd267 100644
--- a/projects/VC90/poly2ogr/poly2ogr.vcproj
+++ b/projects/VC90/poly2ogr/poly2ogr.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/poly2tri/poly2tri.vcproj b/projects/VC90/poly2tri/poly2tri.vcproj
index 1f12610e..768d90f3 100644
--- a/projects/VC90/poly2tri/poly2tri.vcproj
+++ b/projects/VC90/poly2tri/poly2tri.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/raw2ascii/raw2ascii.vcproj b/projects/VC90/raw2ascii/raw2ascii.vcproj
index ca2342c3..a4f5159e 100644
--- a/projects/VC90/raw2ascii/raw2ascii.vcproj
+++ b/projects/VC90/raw2ascii/raw2ascii.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/shape-decode/shape-decode.vcproj b/projects/VC90/shape-decode/shape-decode.vcproj
index 090a0686..8c5bf798 100644
--- a/projects/VC90/shape-decode/shape-decode.vcproj
+++ b/projects/VC90/shape-decode/shape-decode.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/shapelib/shapelib.vcproj b/projects/VC90/shapelib/shapelib.vcproj
index e12c09aa..26da39cf 100644
--- a/projects/VC90/shapelib/shapelib.vcproj
+++ b/projects/VC90/shapelib/shapelib.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/srtmchop/srtmchop.vcproj b/projects/VC90/srtmchop/srtmchop.vcproj
index 5fca110e..c777dd3e 100644
--- a/projects/VC90/srtmchop/srtmchop.vcproj
+++ b/projects/VC90/srtmchop/srtmchop.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/terrafit/terrafit.vcproj b/projects/VC90/terrafit/terrafit.vcproj
index 34847165..98e63976 100644
--- a/projects/VC90/terrafit/terrafit.vcproj
+++ b/projects/VC90/terrafit/terrafit.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\src"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/testarray/testarray.vcproj b/projects/VC90/testarray/testarray.vcproj
index 7191927f..12fea9b7 100644
--- a/projects/VC90/testarray/testarray.vcproj
+++ b/projects/VC90/testarray/testarray.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/tguserdef/tguserdef.vcproj b/projects/VC90/tguserdef/tguserdef.vcproj
index eda0858a..76fb82ed 100644
--- a/projects/VC90/tguserdef/tguserdef.vcproj
+++ b/projects/VC90/tguserdef/tguserdef.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\..\boost_1_39_0"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\..\boost_1_39_0"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\..\boost_1_39_0"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\..\boost_1_39_0"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\..\boost_1_39_0"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\..\boost_1_39_0"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\..\boost_1_39_0"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232;..\..\..\..\boost_1_39_0"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/tgvpf/tgvpf.vcproj b/projects/VC90/tgvpf/tgvpf.vcproj
index fef67453..8f5059b0 100644
--- a/projects/VC90/tgvpf/tgvpf.vcproj
+++ b/projects/VC90/tgvpf/tgvpf.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -126,7 +126,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -206,7 +206,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -286,7 +286,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
diff --git a/projects/VC90/vpf/vpf.vcproj b/projects/VC90/vpf/vpf.vcproj
index 69a3cd0f..2343939d 100644
--- a/projects/VC90/vpf/vpf.vcproj
+++ b/projects/VC90/vpf/vpf.vcproj
@@ -44,7 +44,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -111,7 +111,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;_DEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -176,7 +176,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty\include;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"
@@ -240,7 +240,7 @@
 			/>
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc71\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
+				AdditionalIncludeDirectories="..\..\..\..\SimGear.cs;..\..\..\..;..\..\..\..\3rdParty.x64\include;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\src\Lib;..\..\..\src\BuildTiles;..\..\..\..\gpc232"
 				PreprocessorDefinitions="WIN32;NDEBUG;_LIB;NOMINMAX;_CRT_SECURE_NO_WARNINGS"
 				RuntimeLibrary="2"
 				RuntimeTypeInfo="true"