need urgent help removing a virus

[The_Hunter]

how to remove a "Trojan horse downloader" dont want to reformat

[manofstyle]

What AV software are you running? I have found Avira AntiVir to be the best, it's free at: http://free-av.com

For removing Trojans a good tool is Trojan Remover you can get it here: http://www.simplysup.com/

Sometimes you will need to reboot in safe mode etc. to get files that are being used deleted, Trojan Remover automates that for you.

Good Luck.

[peat moss]

Turn off System Restore as well before you do anything . Its almost like you need three or more tools to completely remove the nasty buggers .

Hyjackthis , trojan remover and a regcleaner . Do an online scan with one of the many anti virus sites to help .