diff --git a/windows/proj/hdf5/hdf5.dsp b/windows/proj/hdf5/hdf5.dsp
index aac18458f2..1f42eb968c 100755
--- a/windows/proj/hdf5/hdf5.dsp
+++ b/windows/proj/hdf5/hdf5.dsp
@@ -1661,6 +1661,21 @@ SOURCE=..\..\..\src\H5Ocont.c
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\src\H5Ocopy.c
+
+!IF  "$(CFG)" == "hdf5 - Win32 Release"
+
+!ELSEIF  "$(CFG)" == "hdf5 - Win32 Debug"
+
+!ELSEIF  "$(CFG)" == "hdf5 - Win32 AlphaDbg"
+
+!ELSEIF  "$(CFG)" == "hdf5 - Win32 AlphaRel"
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\src\H5Odtype.c
 
 !IF  "$(CFG)" == "hdf5 - Win32 Release"
diff --git a/windows/proj/hdf5dll/hdf5dll.dsp b/windows/proj/hdf5dll/hdf5dll.dsp
index 78c80407db..009a620f08 100755
--- a/windows/proj/hdf5dll/hdf5dll.dsp
+++ b/windows/proj/hdf5dll/hdf5dll.dsp
@@ -1771,6 +1771,21 @@ SOURCE=..\..\..\src\H5Ocont.c
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\..\src\H5Ocopy.c
+
+!IF  "$(CFG)" == "hdf5dll - Win32 Release"
+
+!ELSEIF  "$(CFG)" == "hdf5dll - Win32 Debug"
+
+!ELSEIF  "$(CFG)" == "hdf5dll - Win32 AlphaDbg"
+
+!ELSEIF  "$(CFG)" == "hdf5dll - Win32 AlphaRel"
+
+!ENDIF 
+
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\..\src\H5Odtype.c
 
 !IF  "$(CFG)" == "hdf5dll - Win32 Release"