... oWnd maximized ON INIT (oSpl:AdjRight(),IF(Login(),(cLogin:=.T.,Start(),MuestraUsuario()), oWnd:End())); valid IF(cLogin.and.vPrevia(cLogin),MsgYesNo( "Abandona el Sistema ?"," Confirme: "),IF(cLogin,.F.,.T.)) In your case: ACTIVATE WINDOW oWnd maximized ON INIT IF(LogInUser(),,oWnd:End()) ...