>why is it that whenever i use the "build exe" in the project manager the exe file that was created only works for one time and every time that i click the exe file a foxpro window shows , flashes my main window for a second and disappers. Why is this happening when my form's showwindow property is set to top level form.

You need to put your app in a wait state, with READ EVENTS, usually something like this:

do menu.mpr
do form myform.scx
READ EVENTS