diff --git a/projects/VC90/FlightGear/FlightGear.vcproj b/projects/VC90/FlightGear/FlightGear.vcproj
index d2e5e9291..80577f579 100644
--- a/projects/VC90/FlightGear/FlightGear.vcproj
+++ b/projects/VC90/FlightGear/FlightGear.vcproj
@@ -48,7 +48,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="..\..\..\src;..\..\..\src\include;..\..\..\..\SimGear;..\..\..\src\FDM\JSBSim;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\..\3rdParty\include;..\..\..\..\boost_1_44_0"
-				PreprocessorDefinitions="_DEBUG;WIN32;_CONSOLE;HAVE_CONFIG_H;FGFS;ENABLE_AUDIO_SUPPORT;_FG_NDEBUG;ENABLE_THREADS=1;FG_ENABLE_MULTIPASS_CLOUDS;ENABLE_SP_FMDS;_USE_MATH_DEFINES;FG_JPEG_SERVER;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;HAVE_VERSION_H=$(HAVE_VERSION_H)"
+				PreprocessorDefinitions="_DEBUG;WIN32;_CONSOLE;HAVE_CONFIG_H;FGFS;ENABLE_AUDIO_SUPPORT;_FG_NDEBUG;ENABLE_THREADS=1;FG_ENABLE_MULTIPASS_CLOUDS;ENABLE_SP_FMDS;_USE_MATH_DEFINES;FG_JPEG_SERVER;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;HAVE_VERSION_H=$(HAVE_VERSION_H)0"
 				StringPooling="true"
 				BasicRuntimeChecks="0"
 				RuntimeLibrary="3"
@@ -137,7 +137,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="..\..\..\src;..\..\..\src\include;..\..\..\..\SimGear;..\..\..\src\FDM\JSBSim;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\..\3rdParty.x64\include;..\..\..\..\boost_1_44_0"
-				PreprocessorDefinitions="_DEBUG;WIN32;_CONSOLE;HAVE_CONFIG_H;FGFS;ENABLE_AUDIO_SUPPORT;_FG_NDEBUG;ENABLE_THREADS=1;FG_ENABLE_MULTIPASS_CLOUDS;ENABLE_SP_FMDS;_USE_MATH_DEFINES;FG_JPEG_SERVER;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;PU_USE_NATIVE;HAVE_VERSION_H=$(HAVE_VERSION_H)"
+				PreprocessorDefinitions="_DEBUG;WIN32;_CONSOLE;HAVE_CONFIG_H;FGFS;ENABLE_AUDIO_SUPPORT;_FG_NDEBUG;ENABLE_THREADS=1;FG_ENABLE_MULTIPASS_CLOUDS;ENABLE_SP_FMDS;_USE_MATH_DEFINES;FG_JPEG_SERVER;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;PU_USE_NATIVE;HAVE_VERSION_H=$(HAVE_VERSION_H)0"
 				StringPooling="true"
 				BasicRuntimeChecks="0"
 				RuntimeLibrary="3"
@@ -225,7 +225,7 @@
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
 				AdditionalIncludeDirectories="..\..\..\src;..\..\..\src\include;..\..\..\src\FDM\JSBSim;..\..\..\..\SimGear;..\..\..\..\install\msvc90\OpenSceneGraph\include;..\..\..\..\3rdParty\include;..\..\..\..\boost_1_44_0"
-				PreprocessorDefinitions="NDEBUG;WIN32;_CONSOLE;HAVE_CONFIG_H;FGFS;ENABLE_AUDIO_SUPPORT;_FG_NDEBUG;ENABLE_THREADS=1;FG_ENABLE_MULTIPASS_CLOUDS;ENABLE_SP_FMDS;_USE_MATH_DEFINES;FG_JPEG_SERVER;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;HAVE_VERSION_H=$(HAVE_VERSION_H)"
+				PreprocessorDefinitions="NDEBUG;WIN32;_CONSOLE;HAVE_CONFIG_H;FGFS;ENABLE_AUDIO_SUPPORT;_FG_NDEBUG;ENABLE_THREADS=1;FG_ENABLE_MULTIPASS_CLOUDS;ENABLE_SP_FMDS;_USE_MATH_DEFINES;FG_JPEG_SERVER;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;HAVE_VERSION_H=$(HAVE_VERSION_H)0"
 				StringPooling="true"
 				RuntimeLibrary="2"
 				EnableFunctionLevelLinking="true"
@@ -313,7 +313,7 @@
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
 				AdditionalIncludeDirectories="..\..\..\src;..\..\..\src\include;..\..\..\src\FDM\JSBSim;..\..\..\..\SimGear;..\..\..\..\install\msvc90-64\OpenSceneGraph\include;..\..\..\..\3rdParty.x64\include;..\..\..\..\boost_1_44_0"
-				PreprocessorDefinitions="NDEBUG;WIN32;_CONSOLE;HAVE_CONFIG_H;FGFS;ENABLE_AUDIO_SUPPORT;_FG_NDEBUG;ENABLE_THREADS=1;FG_ENABLE_MULTIPASS_CLOUDS;ENABLE_SP_FMDS;_USE_MATH_DEFINES;FG_JPEG_SERVER;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;PU_USE_NATIVE;HAVE_VERSION_H=$(HAVE_VERSION_H)"
+				PreprocessorDefinitions="NDEBUG;WIN32;_CONSOLE;HAVE_CONFIG_H;FGFS;ENABLE_AUDIO_SUPPORT;_FG_NDEBUG;ENABLE_THREADS=1;FG_ENABLE_MULTIPASS_CLOUDS;ENABLE_SP_FMDS;_USE_MATH_DEFINES;FG_JPEG_SERVER;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;PU_USE_NATIVE;HAVE_VERSION_H=$(HAVE_VERSION_H)0"
 				StringPooling="true"
 				RuntimeLibrary="2"
 				EnableFunctionLevelLinking="true"
diff --git a/src/Instrumentation/mk_viii.cxx b/src/Instrumentation/mk_viii.cxx
index 223ab6136..11846db5e 100755
--- a/src/Instrumentation/mk_viii.cxx
+++ b/src/Instrumentation/mk_viii.cxx
@@ -77,7 +77,7 @@ using std::string;
 #include <Airports/runways.hxx>
 #include <Airports/simple.hxx>
 
-#ifdef HAVE_VERSION_H
+#if defined( HAVE_VERSION_H ) && HAVE_VERSION_H
 #  include <Include/version.h>
 #else
 #  include <Include/no_version.h>