diff --git a/project/vc2008_mfc/VBA2008.vcproj b/project/vc2008_mfc/VBA2008.vcproj
index 992239a7..501d6ee5 100644
--- a/project/vc2008_mfc/VBA2008.vcproj
+++ b/project/vc2008_mfc/VBA2008.vcproj
@@ -480,6 +480,10 @@
 					RelativePath="..\..\src\gba\GBAcpu.h"
 					>
 				</File>
+				<File
+					RelativePath="..\..\src\gba\gbafilter.cpp"
+					>
+				</File>
 				<File
 					RelativePath="..\..\src\gba\gbagfx.cpp"
 					>
diff --git a/src/win32/VBA.cpp b/src/win32/VBA.cpp
index 1bab9c60..5ea54cbd 100644
--- a/src/win32/VBA.cpp
+++ b/src/win32/VBA.cpp
@@ -926,6 +926,13 @@ u32 systemReadJoypad(int which)
   return 0;
 }
 
+// TODO: implement
+void systemCartridgeRumble(bool) { }
+void systemPossibleCartridgeRumble(bool) { }
+void updateRumbleFrame() { }
+int systemGetSensorZ() { return 0; }
+u8 systemGetSensorDarkness() { return 0; }
+
 void systemDrawScreen()
 {
   if(theApp.display == NULL)