One option is to use Buddy API: OK = baActivateWindow( baWinHandle() )
Did you try window("stage").moveToFront()? You might need to do this from a timeout so as to let the MIAW get past its initialisation phase.
I have not tried either of these and would prefer the Lingo solution - so I tried the later first. I forgot to state that I am having problems with 11.5 multiple activations (I have five computers with different versions of Windows and can only activate on two), so I have gone back to 8.0. When using window("stage").moveToFront() in 8.0 Director can not find "stage" and opens an open file dialog box. I tried "the stage" and that does not work either. Can you please tell me what the equivalent 8.0 Lingo would be (and sorry for my oversight), thanks!