The Connection property array can be used to enumerate the
active dial-up networking sessions on the local system. The index is
zero-based, and the number of connections is returned by the
Connections property. The property returns a long integer
value which represents the handle to the session. Setting the
Handle property to this value will cause the control to
inherit the session and the control's properties will be updated with
information about the connection.
Specifying an index greater than the number of available
connections will generate an error.