Server applications - avoiding sleep

[rodmc]

I have written a small server application (for Windows) which handles
sending and receiving information from an instant messaging client and
a database. This server needs to run 24/7, however it stops when the
computer screen is locked.

I assume there is a way to make it run in the background 24/7 but how
do I go about doing this?

At present the application runs from within a wxPython GUI, however
this is only used to start and stop it. It could be entire faceless and
the GUI only used to execute it.

Best,

rod