The August 3, 2004 issue of PC Magazine is on Spyware/Vruses, etc.  It recommends AnswersThatWork.com as a place to find out what is running at start up.  AnswersThatWork states that if you are running Windows XP, which I am on my Dell Dimension 4300, and "Rundll32.exe" is in the Task Manager, it is a virus.  My McAfee virus program is running and does not show this as a virus.  Who is right?  Should Rundll32.exe show up in my Task Bar?