i have norton system doctor 2002,in my xp computer,also i have norton anti virus 2005. i have tried to delete norton system doctor 2002. but it says file is corrupt cannot remove norton system doctor 2002. i deleted it from register,or so i thought. it is still there. i unticked the box in msconfig in start up. that works ok,but the program is still in the add/remove programs list,and all programs list. what can i do to get rid of norton system doctor 2002?