Thanks for the reply.
I've all but given up on this pc. I've done everything suggested on that link with no success (the link in #11 no longer works though).
The crazy thing is, I bet its just one simple thing that needs done to activate the server service.
Any other ideas before I relegate this pc to stand alone duties or end up reinstalling XP from scratch?
Compare it with what you have, see if there are any differences. You could try creating a .reg file from the red text above, save on you rhard drive then double click on it or right click and select Merge. See if that makes any difference.
The part I would be concerned about is the Guid value.