I work part time for doctor. We have 14 workstations running with SBS 2003. Its kinda mixed with mostly XP pro and one machine running XP home. We have a Cisco 800 as our router. I have been told to take away internet to about half the computers while still allowing them to get to the server. I know I can do this at the router level but I am looking for a way to do it in WinXP…Any ideas would be great!