Don,
Check out Malwarebytes AntiMalware software, I think it's still a free download.  You might also try running Malwarebytes, AVG and/or Superantispyware in safe mode.  Depending on where the virus is located, they may not be able to delete it if the program is active.  Safe mode loads only the minimal programs to get the pc started.  If you know the location of the file/virus itself, you could also try to delete it in safe mode.  If it has attached to another program, you need to be careful, or you may mess up that program or your system.
Paul Hachmeyer 

-----Original Message-----
From: Personal Computer Hardware discussion List [mailto:[log in to unmask]] On Behalf Of Donald DeWitt
Sent: Wednesday, July 21, 2010 12:39 PM
To: [log in to unmask]
Subject: [PCBUILD] Computer infection

Hello everyone,

I'm running XP windows service pack 2 on a Dell desk top computer.

I acquired an infection from the internet that has been documented and
located by both Avg and Superantispyware in; Documents and Settings\Local
Service\Cookies\System.

There are presently twenty some variations of this infection and still
growing. Avg and Superantispyware have no problem finding and listing all of
these, however they cannot remove them. I tried running SDFix as recommended
on PCbuild a while back but it is too complicated for me to operate.

If anyone has any suggestions, I would appreciate it

Don

                  Visit our website regularly for FAQs,
               articles, how-to's, tech tips and much more
                          http://freepctech.com