>I have a problem with Visual Foxpro main screen.
>The main screen doesn't close when I close my application(.exe file).
>The program still remains in memmory.
>

The odds are very good that your program isn't shutting down properly, either as a result of dangling object references, ON SHUTDOWN, etc. I went through exactly this discussion the other day; you might want to make the main VFP window visible but minimized during the shutdown process, so that any error messages have a windows context to display with, allowing you to see what error occurred and possibly suggesting how to handle it.

I'd add the following just before you issue QUIT to shut down the app:

ON SHUTDOWN
CLEAR EVENTS
_screen.WindowState = 1
_screen.Visible = .T. && the VFP main screen is now visible and minimized
CLOSE DATABASE ALL
CLEAR ALL
QUIT

If you use a lot of API calls that might have some memory allocations that aren't freeing at times, the following may help in place of QUIT - I use this routinely in place of QUIT in a number of instances:

DECLARE ExitProcess IN WIN32API INTEGER uExitCode
=ExitProcess(0)

>I don't want to show the main screen in runtime.
>I read Help about _screen but I don't understand how to use _screen
>to control main screen.
>
>Would you please give me some advise?
>
>Thank you very much,
>Yurawat
>kyurawat@chula.c.th