The terminal window can be used to allow user input before and/or
after the dial-up networking connection has been established. If
scripting has been enabled by setting the ScriptFile property,
no terminal window should be displayed after the connection. This is
because scripting has it's own terminal implementation.
Note that this property is only supported on Windows NT 4.0 and
later versions of the operating system. Displaying a terminal window
also imposes several restrictions on the behavior of the control.
Because of how the Remote Access Services API is implemented by
Microsoft, a connection dialog will be displayed after the
Connect method is called if the Terminal property is
non-zero. Setting this property to a non-zero value will also disable
any asynchronous event notifications. It is not recommended that you
set this property unless it is absolutely necessary.