Yet another reason not to use Windows. I'm not sure what Microsoft has to do to keep people from exploiting Windows like crazy over a network, but they need to find it in a hurry. No OS is perfectly safe, but Windows is the operating system that people are targetting, and exploiting successfully. If you have a PC at home, please seriously consider dumping Windows for Linux, (And get help to set it up properly) or get a Macintosh. (And if you must have Windows, at least get a firewall and learn how to use it properly). I don't see this situation getting any better any time soon.