>>Did you try making this form invisible in Deactivate method?
>
>I tried this but it didn't work. My guess is because the form is top level and always on top, _SCREEN is never deactivating. What I will try instead is leverage the VFP sample project code and bind to a Windows system application activation message. Hopefully, that should resolve the issue.

I meant to try make it invisible in Form's Deactivate method (not binding _screen.Deactivate)