Recently removed a very pesky set of viruses from an Windows XP computer. After the final pre-boot scan and cleaning by Avast (Trend Micro would find it but not clear it), the system has a few problems. Most of them relate to RPC. It won't start...so anything and everything that depends on RPC won't start. If I attempt to start it manually at a command prompt it tells me that it can't find the file SCARDSVR.DLL. Oddly enough, I don't find that file on any working systems either. I suspect that it was an infected file that got nuked by the scans.
I'm banging my head against the wall guys. Short of reO/S, how can I salvage this machine?