Renamed wintypes.h to windef.h.

diff --git a/include/winnetwk.h b/include/winnetwk.h
index 55515b4..41ad01a 100644
--- a/include/winnetwk.h
+++ b/include/winnetwk.h
@@ -1,7 +1,7 @@
 #ifndef _WINNETWK_H_
 #define _WINNETWK_H_
 
-#include "wintypes.h"
+#include "windef.h"
 
 
 typedef struct {