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.