Check http://www.berezniker.com/content/pages/visual-foxpro/check-if-exe-running-and-optionally-terminate-it for how to terminate the exe.

>i try to use the following:-
>
>clear program
>clear events
>erase
>
>the same error message.
>
>clear all
>
>you can't use this command on running application.
>
>Regards