There's a file called Run in the Win32API section of the file area here (click the yellow file cabinet). You can also use WinAPI calls to check for the Window's existence and bring it forward if it exists. Take a look at the MS knowledge base: http://support.microsoft.com.

>Run a VFP 5 exe application. It open a window.
>After a while run the second instance of the same
>application again.
>Any suggestion how to open the second instance in
>the first window itself? ie the second window should
>not come up.