>Calvin,
>
>You can use the Foxtools MainHWND() function instead of the FindWindow() function you are using.
>
>>DECLARE INTEGER FindWindow IN WIN32API ;
>> STRING cNull,STRING cWinName
>>RETURN ShellExecute(FindWindow(0, _SCREEN.caption),lcAction, lcLink, lcParms, SYS(2023), 1)

You can also use GetActiveWindow():

DECLARE INTEGER GetActiveWindow IN WIN32API
hWnd = GetActiveWindow()