Index: src/ch/MainWnd.h
===================================================================
diff -u -N -r3c248d4f6d0fdb1e487cc868b2f0b219eec37ef4 -r12ee49f6bf1f8921500ee2078e0a8c2d7b6d2a45
--- src/ch/MainWnd.h	(.../MainWnd.h)	(revision 3c248d4f6d0fdb1e487cc868b2f0b219eec37ef4)
+++ src/ch/MainWnd.h	(.../MainWnd.h)	(revision 12ee49f6bf1f8921500ee2078e0a8c2d7b6d2a45)
@@ -39,7 +39,7 @@
 	BOOL Create();
 
 protected:
-	virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam);
+	LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam) override;
 
 	void PrepareDragAndDropMenuItems(TShellExtMenuConfig &cfgShellExt) const;
 	void PrepareNormalMenuItems(TShellExtMenuConfig &cfgShellExt) const;