diff --git a/project/vc2008_mfc/VBA2008.vcproj b/project/vc2008_mfc/VBA2008.vcproj
index 1c541161..9c555a3e 100644
--- a/project/vc2008_mfc/VBA2008.vcproj
+++ b/project/vc2008_mfc/VBA2008.vcproj
@@ -810,6 +810,14 @@
 				RelativePath="..\..\src\NLS.h"
 				>
 			</File>
+			<File
+				RelativePath="..\..\src\Patch.cpp"
+				>
+			</File>
+			<File
+				RelativePath="..\..\src\Patch.h"
+				>
+			</File>
 			<File
 				RelativePath="..\..\src\Port.h"
 				>
diff --git a/src/Patch.cpp b/src/Patch.cpp
index 04401e79..9d48e460 100644
--- a/src/Patch.cpp
+++ b/src/Patch.cpp
@@ -34,6 +34,12 @@
 #define _stricmp strcasecmp
 #endif // ! _MSC_VER
 
+#ifdef _MSC_VER
+#define fseeko64 _fseeki64
+#define ftello64 _ftelli64
+typedef	__int64 __off64_t;
+#endif
+
 #if defined(__APPLE__) || defined (MACOSX)
 #define	fseeko64 fseeko
 #define	ftello64 ftello