I am trying to run that code  that was posted previously , I  made little modification  no luck so far http://www.autoitscript.com/forum/index.php?showtopic=88082&st=0&p=632463&#entry632463 Basically open calculator  if button "=" is clicked then I just  need a message box to popup #include <Misc.au3> #include <WinAPI.au3> ; Global $hUser32_Dll = DllOpen("User32.dll") HotKeySet("^e", "_Quit") While 1 If _IsPressed("01", $hUser32_Dll) Then ;Waiting unt