http://www.tiscali.co.uk/help/msblast.html
http://www.tiscali.co.uk/help/msbremove.html
http://www.experts-exchange.com/Operating_Systems/WinXP/Q_20707069.html
http://security.symantec.com/sscv6/home.asp?productid=symhome&langid=in&venid=sym&close_parent=false&bhcp=1