... over it, and if the user don't pass the login dialog you close the window. Something like this: ACTIVATE WINDOW oWnd maximized ON INIT (oSpl:AdjRight(),IF(Login(),(cLogin:=.T.,Start(),MuestraUsuario()), oWnd:End())); valid IF(cLogin.and.vPrevia(cLogin),MsgYesNo( "Abandona el Sistema ?"," ...