I ran a boot-time scan using avast! antivirus, and the scan found one Potentially Unwanted Program.
It was classified as Win32:Adspy-DF [PUP]. avast! couldn't remove it during the boot-time scan or send it to the Virus Chest, saying that the operation isn't supported for that type of archive.
I have the scan log if anyone needs it, but I really want to know if this has to be removed and if so, how, because avast! can't do anything.