Another window doesnt popup though it should

[OptionBase1]

Sure. I want to detect presence of my second app both via window name AND presence of folder REPEATEDLY.

Right. And yet, your second app keeps deleting and recreating that folder REPEATEDLY. So there will continuously be times that your first app finds the second app via window name, but the folder is missing.

And there's been no logical reason given for WHY you are doing any of this with timers, window handles, and folder recreation. And because I doubt that reason is forthcoming, I'm officially done with this thread.

Good luck.