The AutoDisconnect property determines if the control
should automatically disconnect from a server when the control
is unloaded, typically when the application terminates. The default
value for this property is True.
If a dial-up connection was already established at the time the
control was loaded, this property will be reset to False, preventing
it from automatically disconnecting from the host when it is
unloaded. Therefore, to always force the control to automatically
terminate a connection when it is unloaded, you must explicitly set
the property value to True in your application.