I've tried it without the FileExists block too, but still no window. When I place the wnd = MsgPlus.CreateWnd line in the Initialize event it shows up fine
EDIT
Nevermind, I got it. Apparently an error occured a few lines before this part, so anything after that stopped. I got the window now... All it does is say "hello" though, so now on to the ImageElement stuff... Can you recommend me any script that uses this, so I can see an example?