This is for people who are using Microsoft Windows Xp professional or home edition. If you are running windows xp without service pack 1 installed then your computer is vulnerable. A person on the internet can create a webpage and then put a code in that allows them to delete a folder of there choice when you click a link. Just think if the Windows folder were deleted. This is very bad, but download service pack 1 and you should be fine. Hope this helps someone.