Troj/Borobt-gen

Hello,
Troj/Borobt-gen is a Trojan aand it recently affected my system. I use windows 2000 Pro.It came in the mode of an e mail attachment with the caption Is Micheal jackson really innocent?. On opening this atachment. it disbles the internet explorer browser. I have tried all the sites but no results.I have installed all the updates and service packs (medicine after death).Does anyone have a solution to my problem. Thanks!