it may be useful to initiate temporary connection
with terminal services to initiate some user sessions
which can be used later.
for example in crontable or other administrative scripts
initiate connection with username,password and
when session initiated, rdesktop waits some time
(assigned in command line) and disconnects from session
without logging it off. then disconnected session ready
for other connections, some programm is running on the
server (doing the job) and everybody happy without
running Xserver !!!