diff --git a/progmgr/progmgr.c b/progmgr/progmgr.c
index bcdc05a..e8de5c7 100644
--- a/progmgr/progmgr.c
+++ b/progmgr/progmgr.c
@@ -166,6 +166,7 @@ int WINAPI wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance,
 	return 0;
 }
 
+#ifdef MEMSETFIX
 #pragma function(memset)
 void *memset(char* dst, int value, size_t count) {
     while (count--) { *dst++ = value; }
@@ -181,4 +182,5 @@ void *memcpy(char *dst, const char *src, size_t count) {
 void __stdcall wWinMainCRTStartup() {
     int code = wWinMain(GetModuleHandle(0), 0, 0, 0);
     ExitProcess(code);
-}
\ No newline at end of file
+}
+#endif