This is apparently one of the really aggressive ones where you have to unregister .dll files that aren't really documented anywhere.
If you are comfortable with unregistering dll files, editting the registry, and mucking with your system restore, then I have nothing more to say.
If not, then your best bet is to get a more proficient person to either reload your system, or shell out for some place to do it for you.
A hint for when unregistering the dll, insert an empty text file where the evil dll is. Rename the bad dll something else, and name the empty text file the bad dll file.
http://www.bleepingcomputer.com/malw...ivirus-xp-2008
This link may be blocked by the xp antivirus so I recommend getting a 2nd system that isn't infected to read and print out instructions.