Terryeast, Thank you for using the Dell Community Forum. I can assure you that Dell would not send out a virus to anyone. This is an Update from Dell Support. What did the update read?
Dell Support popped up an update notification , which I launched. It loaded  aulauncher.exe which, according to a Google search, is a virus that introduces a worm. Why would Dell do that? Anyone able to supply an answer? I would be most grateful. Running off Windows XP.   Ta, Terry
Dell Support Centre auto-update December 10 2010 aulauncher.exe