My assumption is you want to display a logon window after the sign out occurs?

If not you can close the application based on a timer (Idle method).  The Restart method may be of use to you here.

If yes you can display a response window with whatever messaging and sign on process you want the user to do. This could be triggered by the Idle method (which would trigger an application level Idle event after so many seconds).  The application Idle event is where you would do the actual 'work' of cleaning up any unfinished processes/connections and displaying the response window.