Take a look at Re: Know what files are open Message #840304. It may work for you.

>Hi Sergey,
>the problem is: _screen.forms collection doesn´t have all windows opened. Try to modify a form. Open the DataEnvironment window. Edit some method (example: CursorAdapter.Init).
>These screens doesn´t appears in _SCREEN.Forms collection, but you can close or access them through the menu window list.
>
>So, I´m sure that have a way to do it, but I don´t know how...
>
>Do you have another idea?
>
>Thanks for your help.
>Ricardo.