>I want to execute a .exe how can i do
>also i want to know when the .exe will terminate
>how???

See API_APPRUN in .VCX form File #9477. You can also use WSH http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/wsMthRun.asp

oShell = CREATEOBJECT('WScript.Shell')
oShell.Run("C:\mydir\myapp.exe",,.T.)