I have read various other postings of this similar problem.
In brief, a file called a.exe (rar file) that repeatedly comes in c:\ despite all attempts to get rid of it in Safe Mode.
Another, also in c:\ called 30017.exe - not quite so frequent as above.
And the main file called mc-58-12-0000140.exe that also sits in c:\ and has a blue icon in the tray with an A on it. It cannot be deleted or stopped. Deleted in Safe Mode, it soon appears again. It tries to access the Internet.
There were (I have got rid of them) thousands of zip files in directories associated with LimeWire and Kazaa.
I have read about these features in Symantec and your own site. I have deleted via Safe Mode and via Norton, AdAware etc. I have searched the registry in Run, RunOnce etc. Nothing apparently lurking there.
I have deleted cmd.com, netstat.com etc files from System32.
But my computer is working VERY slowly and I can't use Outlook - it won't connect to the provider. Several programmes 'hang' on the desktop - it won't refresh and get rid of graphics - while I have to move windows 'by hand' in order to see and read them.
HELP!!!! if you can