I have tried to use avast! free Home edition numerous times, and it has not been able to complete a full scan. It locates Win32Sober-AB and Win32Sober-AB2 somewhere in my Outlook Express files. Using the delete, rename, and move to chest buttons seems to produce no result, and shortly thereafter, the scanner moves to on a file (still within my Outlook Express files), but stops. Using the independent avast! cleaner numerous times has also not helped. I really suspect that I don't have a virus/worm as I have had no other indications of a virus/worm until I used the avast! scanner. I use Hotmail exclusively (don't they scan for these things?). I'm a newbie. I was using Norton's Systemworks until the subscription ran out. Thanks for any help.