diff --git a/G3DTest.vcproj b/G3DTest.vcproj
index 1829c62..4b48193 100644
--- a/G3DTest.vcproj
+++ b/G3DTest.vcproj
@@ -270,6 +270,10 @@
 					/>
 				</FileConfiguration>
 			</File>
+			<File
+				RelativePath=".\WindowFunctions.cpp"
+				>
+			</File>
 			<Filter
 				Name="Instance"
 				>
@@ -335,6 +339,10 @@
 				RelativePath=".\win32Defines.h"
 				>
 			</File>
+			<File
+				RelativePath=".\WindowFunctions.h"
+				>
+			</File>
 			<Filter
 				Name="Instance"
 				>