[chrisw]

Do you have system restore enabled? Trojans sometimes hide themselves in there and your virus software is unable to delete them despite detecting them because system restore protects the files. If you disable system restore and reboot your PC this will clear your resotre files. Re-enable system restore and reboot. You will now have to set a system restore point as all previous files will have been deleted. Run your virus software and you should find no more files.