diff --git a/projects/VC7.1/.cvsignore b/projects/VC7.1/.cvsignore
index d8763d389..a23206180 100755
--- a/projects/VC7.1/.cvsignore
+++ b/projects/VC7.1/.cvsignore
@@ -6,5 +6,11 @@ fgadmin_Release
 3dconvert_Release
 fgjs_Debug
 fgjs_Release
+GPSsmooth_Debug
+GPSsmooth_Release
+MIDGsmooth_Debug
+MIDGsmooth_Release
+UGsmooth_Debug
+UGsmooth_Release
 FlightGear.ncb
 FlightGear.suo
diff --git a/projects/VC7.1/FlightGear.sln b/projects/VC7.1/FlightGear.sln
index 6ac9d827f..636b882bb 100755
--- a/projects/VC7.1/FlightGear.sln
+++ b/projects/VC7.1/FlightGear.sln
@@ -22,6 +22,21 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fgjs", "fgjs.vcproj", "{674
 		{22540CD3-D3CA-4C86-A773-80AEEE3ACDED} = {22540CD3-D3CA-4C86-A773-80AEEE3ACDED}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "GPSsmooth", "GPSsmooth.vcproj", "{AE9CE7E4-8F21-4C34-82DD-4D0371C210DA}"
+	ProjectSection(ProjectDependencies) = postProject
+		{22540CD3-D3CA-4C86-A773-80AEEE3ACDED} = {22540CD3-D3CA-4C86-A773-80AEEE3ACDED}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "MIDGsmooth", "MIDGsmooth.vcproj", "{92010FAB-17A3-4891-AE6D-507214FEA508}"
+	ProjectSection(ProjectDependencies) = postProject
+		{22540CD3-D3CA-4C86-A773-80AEEE3ACDED} = {22540CD3-D3CA-4C86-A773-80AEEE3ACDED}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "UGsmooth", "UGsmooth.vcproj", "{EEEEB798-BFFD-425F-86F9-03C6FE6B8B99}"
+	ProjectSection(ProjectDependencies) = postProject
+		{22540CD3-D3CA-4C86-A773-80AEEE3ACDED} = {22540CD3-D3CA-4C86-A773-80AEEE3ACDED}
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfiguration) = preSolution
 		Debug = Debug
@@ -48,6 +63,18 @@ Global
 		{6749547A-6493-4754-8E0E-49FB3137C4CA}.Debug.Build.0 = Debug|Win32
 		{6749547A-6493-4754-8E0E-49FB3137C4CA}.Release.ActiveCfg = Release|Win32
 		{6749547A-6493-4754-8E0E-49FB3137C4CA}.Release.Build.0 = Release|Win32
+		{AE9CE7E4-8F21-4C34-82DD-4D0371C210DA}.Debug.ActiveCfg = Debug|Win32
+		{AE9CE7E4-8F21-4C34-82DD-4D0371C210DA}.Debug.Build.0 = Debug|Win32
+		{AE9CE7E4-8F21-4C34-82DD-4D0371C210DA}.Release.ActiveCfg = Release|Win32
+		{AE9CE7E4-8F21-4C34-82DD-4D0371C210DA}.Release.Build.0 = Release|Win32
+		{92010FAB-17A3-4891-AE6D-507214FEA508}.Debug.ActiveCfg = Debug|Win32
+		{92010FAB-17A3-4891-AE6D-507214FEA508}.Debug.Build.0 = Debug|Win32
+		{92010FAB-17A3-4891-AE6D-507214FEA508}.Release.ActiveCfg = Release|Win32
+		{92010FAB-17A3-4891-AE6D-507214FEA508}.Release.Build.0 = Release|Win32
+		{EEEEB798-BFFD-425F-86F9-03C6FE6B8B99}.Debug.ActiveCfg = Debug|Win32
+		{EEEEB798-BFFD-425F-86F9-03C6FE6B8B99}.Debug.Build.0 = Debug|Win32
+		{EEEEB798-BFFD-425F-86F9-03C6FE6B8B99}.Release.ActiveCfg = Release|Win32
+		{EEEEB798-BFFD-425F-86F9-03C6FE6B8B99}.Release.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 	EndGlobalSection
diff --git a/projects/VC7.1/GPSsmooth.vcproj b/projects/VC7.1/GPSsmooth.vcproj
new file mode 100755
index 000000000..dfae7e56d
--- /dev/null
+++ b/projects/VC7.1/GPSsmooth.vcproj
@@ -0,0 +1,145 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="7.10"
+	Name="GPSsmooth"
+	ProjectGUID="{AE9CE7E4-8F21-4C34-82DD-4D0371C210DA}"
+	RootNamespace="GPSsmooth"
+	Keyword="Win32Proj">
+	<Platforms>
+		<Platform
+			Name="Win32"/>
+	</Platforms>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(ProjectName)_Debug"
+			IntermediateDirectory="$(ProjectName)_Debug"
+			ConfigurationType="1"
+			CharacterSet="2">
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\src;..\..\..;..\..\..\SimGear;..\..\..\OpenSceneGraph\include;..\..\..\3rdParty\include"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX"
+				MinimalRebuild="TRUE"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="TRUE"
+				DebugInformationFormat="4"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="sg_d.lib net_d.lib ul_d.lib ws2_32.lib winmm.lib zlibd.lib"
+				OutputFile="$(OutDir)/GPSsmooth.exe"
+				LinkIncremental="2"
+				AdditionalLibraryDirectories="..\..\..\plib;..\..\..\3rdParty\lib"
+				GenerateDebugInformation="TRUE"
+				ProgramDatabaseFile="$(OutDir)/GPSsmooth.pdb"
+				SubSystem="1"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(ProjectName)_Release"
+			IntermediateDirectory="$(ProjectName)_Release"
+			ConfigurationType="1"
+			CharacterSet="2">
+			<Tool
+				Name="VCCLCompilerTool"
+				AdditionalIncludeDirectories="..\..\src;..\..\..;..\..\..\SimGear;..\..\..\OpenSceneGraph\include;..\..\..\3rdParty\include"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX"
+				RuntimeLibrary="2"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="TRUE"
+				DebugInformationFormat="3"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="sg.lib net.lib ul.lib ws2_32.lib winmm.lib zlib.lib"
+				OutputFile="$(OutDir)/GPSsmooth.exe"
+				LinkIncremental="1"
+				AdditionalLibraryDirectories="..\..\..\plib;..\..\..\3rdParty\lib"
+				GenerateDebugInformation="TRUE"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
+			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
+			<File
+				RelativePath="..\..\utils\GPSsmooth\gps.cxx">
+			</File>
+			<File
+				RelativePath="..\..\utils\GPSsmooth\gps_main.cxx">
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc;xsd"
+			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}">
+			<File
+				RelativePath="..\..\utils\GPSsmooth\gps.hxx">
+			</File>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
+			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}">
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/projects/VC7.1/MIDGsmooth.vcproj b/projects/VC7.1/MIDGsmooth.vcproj
new file mode 100755
index 000000000..9448cff5d
--- /dev/null
+++ b/projects/VC7.1/MIDGsmooth.vcproj
@@ -0,0 +1,144 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="7.10"
+	Name="MIDGsmooth"
+	ProjectGUID="{92010FAB-17A3-4891-AE6D-507214FEA508}"
+	Keyword="Win32Proj">
+	<Platforms>
+		<Platform
+			Name="Win32"/>
+	</Platforms>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(ProjectName)_Debug"
+			IntermediateDirectory="$(ProjectName)_Debug"
+			ConfigurationType="1"
+			CharacterSet="2">
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\src;..\..\..;..\..\..\SimGear;..\..\..\OpenSceneGraph\include;..\..\..\3rdParty\include"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX"
+				MinimalRebuild="TRUE"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="TRUE"
+				DebugInformationFormat="4"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="sg_d.lib net_d.lib ul_d.lib ws2_32.lib winmm.lib"
+				OutputFile="$(OutDir)/MIDGsmooth.exe"
+				LinkIncremental="2"
+				AdditionalLibraryDirectories="..\..\..\plib"
+				GenerateDebugInformation="TRUE"
+				ProgramDatabaseFile="$(OutDir)/MIDGsmooth.pdb"
+				SubSystem="1"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(ProjectName)_Release"
+			IntermediateDirectory="$(ProjectName)_Release"
+			ConfigurationType="1"
+			CharacterSet="2">
+			<Tool
+				Name="VCCLCompilerTool"
+				AdditionalIncludeDirectories="..\..\src;..\..\..;..\..\..\SimGear;..\..\..\OpenSceneGraph\include;..\..\..\3rdParty\include"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX"
+				RuntimeLibrary="2"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="TRUE"
+				DebugInformationFormat="3"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="sg.lib net.lib ul.lib ws2_32.lib winmm.lib"
+				OutputFile="$(OutDir)/MIDGsmooth.exe"
+				LinkIncremental="1"
+				AdditionalLibraryDirectories="..\..\..\plib"
+				GenerateDebugInformation="TRUE"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
+			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
+			<File
+				RelativePath="..\..\utils\GPSsmooth\MIDG-II.cxx">
+			</File>
+			<File
+				RelativePath="..\..\utils\GPSsmooth\MIDG_main.cxx">
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc;xsd"
+			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}">
+			<File
+				RelativePath="..\..\utils\GPSsmooth\MIDG-II.hxx">
+			</File>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
+			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}">
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/projects/VC7.1/UGsmooth.vcproj b/projects/VC7.1/UGsmooth.vcproj
new file mode 100755
index 000000000..e35cc48a2
--- /dev/null
+++ b/projects/VC7.1/UGsmooth.vcproj
@@ -0,0 +1,144 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="7.10"
+	Name="UGsmooth"
+	ProjectGUID="{EEEEB798-BFFD-425F-86F9-03C6FE6B8B99}"
+	Keyword="Win32Proj">
+	<Platforms>
+		<Platform
+			Name="Win32"/>
+	</Platforms>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(ProjectName)_Debug"
+			IntermediateDirectory="$(ProjectName)_Debug"
+			ConfigurationType="1"
+			CharacterSet="2">
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\src;..\..\..;..\..\..\SimGear;..\..\..\OpenSceneGraph\include;..\..\..\3rdParty\include"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;NOMINMAX"
+				MinimalRebuild="TRUE"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="TRUE"
+				DebugInformationFormat="4"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="sg_d.lib net_d.lib ul_d.lib ws2_32.lib winmm.lib"
+				OutputFile="$(OutDir)/UGsmooth.exe"
+				LinkIncremental="2"
+				AdditionalLibraryDirectories="..\..\..\plib"
+				GenerateDebugInformation="TRUE"
+				ProgramDatabaseFile="$(OutDir)/UGsmooth.pdb"
+				SubSystem="1"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(ProjectName)_Release"
+			IntermediateDirectory="$(ProjectName)_Release"
+			ConfigurationType="1"
+			CharacterSet="2">
+			<Tool
+				Name="VCCLCompilerTool"
+				AdditionalIncludeDirectories="..\..\src;..\..\..;..\..\..\SimGear;..\..\..\OpenSceneGraph\include;..\..\..\3rdParty\include"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;NOMINMAX"
+				RuntimeLibrary="2"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="TRUE"
+				DebugInformationFormat="3"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="sg.lib net.lib ul.lib ws2_32.lib winmm.lib"
+				OutputFile="$(OutDir)/UGsmooth.exe"
+				LinkIncremental="1"
+				AdditionalLibraryDirectories="..\..\..\plib"
+				GenerateDebugInformation="TRUE"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx"
+			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}">
+			<File
+				RelativePath="..\..\utils\GPSsmooth\UGear.cxx">
+			</File>
+			<File
+				RelativePath="..\..\utils\GPSsmooth\UGear_main.cxx">
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc;xsd"
+			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}">
+			<File
+				RelativePath="..\..\utils\GPSsmooth\UGear.hxx">
+			</File>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx"
+			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}">
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>