diff --git a/projectfiles/blender/BPY_python/BPY_python.dsp b/projectfiles/blender/BPY_python/BPY_python.dsp
index 92c9fd3ba9a..e122f0ffe90 100644
--- a/projectfiles/blender/BPY_python/BPY_python.dsp
+++ b/projectfiles/blender/BPY_python/BPY_python.dsp
@@ -173,6 +173,10 @@ SOURCE=..\..\..\source\blender\python\api2_2x\Group.c
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\source\blender\python\api2_2x\IDProp.c
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\source\blender\python\api2_2x\Image.c
 # End Source File
 # Begin Source File
diff --git a/projectfiles/blender/blenkernel/BKE_blenkernel.dsp b/projectfiles/blender/blenkernel/BKE_blenkernel.dsp
index 6928a73e86f..171bfab7dad 100644
--- a/projectfiles/blender/blenkernel/BKE_blenkernel.dsp
+++ b/projectfiles/blender/blenkernel/BKE_blenkernel.dsp
@@ -149,6 +149,10 @@ SOURCE=..\..\..\source\blender\blenkernel\intern\action.c
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\source\blender\blenkernel\intern\idprop.c
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\source\blender\blenkernel\intern\anim.c
 # End Source File
 # Begin Source File
diff --git a/projectfiles_vc7/blender/BPY_python/BPY_python.vcproj b/projectfiles_vc7/blender/BPY_python/BPY_python.vcproj
index de36cfa7456..271d2fd6339 100644
--- a/projectfiles_vc7/blender/BPY_python/BPY_python.vcproj
+++ b/projectfiles_vc7/blender/BPY_python/BPY_python.vcproj
@@ -158,6 +158,9 @@
 			<File
 				RelativePath="..\..\..\source\blender\python\api2_2x\Group.c">
 			</File>
+			<File
+				RelativePath="..\..\..\source\blender\python\api2_2x\IDProp.c">
+			</File>
 			<File
 				RelativePath="..\..\..\source\blender\python\api2_2x\Image.c">
 			</File>
diff --git a/projectfiles_vc7/blender/blenkernel/BKE_blenkernel.vcproj b/projectfiles_vc7/blender/blenkernel/BKE_blenkernel.vcproj
index 65be7db777b..9784cf39b5f 100644
--- a/projectfiles_vc7/blender/blenkernel/BKE_blenkernel.vcproj
+++ b/projectfiles_vc7/blender/blenkernel/BKE_blenkernel.vcproj
@@ -389,6 +389,9 @@
 			<File
 				RelativePath="..\..\..\source\blender\blenkernel\intern\group.c">
 			</File>
+			<File
+				RelativePath="..\..\..\source\blender\blenkernel\intern\idprop.c">
+			</File>
 			<File
 				RelativePath="..\..\..\source\blender\blenkernel\intern\icons.c">
 			</File>