Right Click My Computer and Click Manage, Computer Management Console comes up. Then open Shared Folders, Then Sessions. This will tell you if someone is connected to your computer, then click open files and that will tell you what they are opening and viewing. Also, check your Event Viewer, it logs when people or other computer access your PC remotely, just browse through them. Rem. Win2000 comes with hidden shares C$, ADMIN$, IPC$ default for system administration duties when on a network. NT utilities-Domain Admins need these for managing PC's. Hope this sheds some light.
Cliff, CCNA/MCSE/MCSA 2000
Network Systems Engineer