I have several Windows 2000 Pro clients that have recently come up with errors mapping network drives due to the net command "dissapearing". The clients are on a domain and you can manually map the drives. I have tried sfc, recovery console, windows 2000 repair, and copying the net.exe from another machine, but you can't see the file. Seems like a virus/worm, but everything checks out okay. Does any one have any ideas?