--- mstools/samples/menu/menu.c	2018/08/09 18:20:01	1.1.1.1
+++ mstools/samples/menu/menu.c	2018/08/09 18:20:53	1.1.1.2
@@ -547,7 +547,7 @@ LONG APIENTRY MenuWndProc (
 		DialogBox (hInst,
 			   "AboutBox",
 			   hWnd,
-			   (WNDPROC)lpProc);
+			   lpProc);
 
 		FreeProcInstance (lpProc);
 		break;
@@ -568,7 +568,7 @@ LONG APIENTRY MenuWndProc (
 		   DialogBox (hInst,
 			      "AboutBox",
 			      hWnd,
-			      (WNDPROC)lpProc);
+			      lpProc);
 
 		   FreeProcInstance (lpProc);
 		   break;