RAS

Hi,

My application establishes a RAS connection. Everything works well, I can disconnect from my application, but I have a little problem.
I don't know how to detect that my RAS connection has been close from another way : for instance, from Windows Remote Access Manager Window.
Shall I receive a message or something else from Windows ?
The problem is, in this case, my application still got a "Disconnect" button, even if the RAS connection have been closed. I would like to be warn when this RAS connection is being close.

TIA.
Stephane.