>Greg, thanks for the detailed code. One more question:
>
>When I determine that Form1 exists,
> isnull( _SCREEN.MyRef[1] ) = .F.
>how do I reference the form and execute the .Show method?

You will use this syntax

loForm = evaluate("_Screen.MyRef[1]")
loForm.Show()

if direct
_screen.MyRef[1].Show() would not work.