Just a little tip for you Norton/Symantec users.
Let me try to put this in a way that doesn't sound too illegal.......
If you can't update your virus definitions because of an expired license....Before you click "Update" for LiveUpdate to go out and find updates, try changing your Windows date/time to a year ago (or a time within your licensed date). This works with all Norton/Symantec apps prior to 2004 editions. Then, after updating your defs.....change your system time back to the present.
I would NOT recommend trying anything that I posted above....you would be breaching your contract in the user agreement.....that would not be legal.