The "hack" you are asking about is called NTSwitch and for others who dont know about this you can find some information about this described on the sites below. I would suggest reading about this before applying it in a work envronment (
). The grass isnt always greener on the other side..
hxxp://www.theregister.co.uk/2002/03/25/registry_hack_turns_xp_pro/
hxxp://www.theregister.co.uk/2002/03/28/winxp_pro_with_net_server/
hxxp://www.iwr.co.uk/News/1130493
::NULLI::