a little script that i finally manage to do by understanding better dllcall and the dll struct i know the WinFlash exists, but i think it uses the API flashWindow and not FlashWindowEx FlashWindowEx allow more options, like continuosly flashing the window until it's on the foreground (i was needed this) here it is FlashWindow.au3 and a sample to understand what i mean FlashWindow_example.au3 hope this will be useful to somebody ^^ Arcker