Well.. that might or might not work
I had a similar problem and the only thing that fixed it was this:
(My resident virus-scan kept finding the file but a regular scan did not)
Go to Control panel/system and disable system restore. Reboot, run the virus-scan just in case, then enable the system restore once again. Disabling the system restore deletes all the associated files (and restore points).
Worked fine for me, after trying anything else I could come up with for days.
Eric
November 2003