from pcworld.com: Microsoft’s support for Windows XP is over. It really is. But because of the company’s sense of responsibility, it will fix and Internet Explorer vulnerability that affects XP — just this once. That was the message that Microsoft sent in a blog post on Thursday, when it said it would fix all versions of Internet Explorer that were affected by a vulnerability discovered over the weekend. The bug was deemed so serious that the Department of Homeland Security recommended that users avoid using Microsoft’s browser until it had fixed the vulnerability.