It is a file rewriter and modifier. If you read how the virus modifies and corrupts Windows files to do it's own dirty work you'll understand. If he's getting error messages after removing the bug than pieces of some files could not be cleaned so they had to be removed. From what I'm reading in the post I'm assuming he's done what Symantec's has instructed. Doing what I wrote previous will simply put back whatever pieces were removed or not repaired properly to eliminate the error messages.
Tommy, did you read my whole post?
Quote:
Go in and do what Norton tells you to do from the page link you posted
Very first line! 
