diff --git a/projects/VC100/SimGear.vcxproj b/projects/VC100/SimGear.vcxproj
index 2f056355..2abcb4d5 100644
--- a/projects/VC100/SimGear.vcxproj
+++ b/projects/VC100/SimGear.vcxproj
@@ -225,6 +225,7 @@
     <ClCompile Include="..\..\simgear\misc\texcoord.cxx" />
     <ClCompile Include="..\..\simgear\misc\zfstream.cxx" />
     <ClCompile Include="..\..\simgear\misc\ResourceManager.cxx" />
+    <ClCompile Include="..\..\simgear\props\propertyObject.cxx" />
     <ClCompile Include="..\..\simgear\route\route.cxx" />
     <ClCompile Include="..\..\simgear\route\waypoint.cxx" />
     <ClCompile Include="..\..\simgear\scene\material\mipmap.cxx" />
@@ -427,6 +428,7 @@
     <ClInclude Include="..\..\simgear\misc\texcoord.hxx" />
     <ClInclude Include="..\..\simgear\misc\zfstream.hxx" />
     <ClInclude Include="..\..\simgear\misc\ResourceManager.hxx" />
+    <ClInclude Include="..\..\simgear\props\propertyObject.hxx" />
     <ClInclude Include="..\..\simgear\route\route.hxx" />
     <ClInclude Include="..\..\simgear\route\waypoint.hxx" />
     <ClInclude Include="..\..\simgear\scene\material\mipmap.hxx" />
diff --git a/projects/VC100/SimGear.vcxproj.filters b/projects/VC100/SimGear.vcxproj.filters
index 4500864a..cd99edfb 100644
--- a/projects/VC100/SimGear.vcxproj.filters
+++ b/projects/VC100/SimGear.vcxproj.filters
@@ -600,6 +600,9 @@
     <ClCompile Include="..\..\simgear\scene\model\ConditionNode.cxx">
       <Filter>Lib_sgmodel</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\simgear\props\propertyObject.cxx">
+      <Filter>Lib_sgprops</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\simgear\bucket\newbucket.hxx">
@@ -1201,6 +1204,9 @@
     <ClInclude Include="..\..\simgear\scene\model\ConditionNode.hxx">
       <Filter>Lib_sgmodel</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\simgear\props\propertyObject.hxx">
+      <Filter>Lib_sgprops</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\simgear\math\linintp2.inl">