--- a/QTfrontend/hwform.cpp	Tue May 17 23:18:08 2016 +0300
+++ b/QTfrontend/hwform.cpp	Tue May 17 23:29:49 2016 +0300
@@ -103,7 +103,9 @@
 #include "AutoUpdater.h"
 
 #ifdef Q_OS_WIN
+#ifndef WINVER
 #define WINVER 0x0500
+#endif
 #include <windows.h>
 #else
 #include <unistd.h>