I am not having put two parameters in isv.config to call the application. Ex:
<Button Title="Editar em Massa" PassParams="1" ToolTip="Test" WinMode="0" JavaScript="window.open('http://localhost/RegistrosMultiplos/Editar.aspx?oid='+ getSelected('crmGrid') +'&Oid_new='+ getSelected('crmGrid')+'',null,'status=yes,toolbar=no,menubar=no, width=785, left= 280,top=300')"/>