<A target="_blank" href="http://searchsecurity.techtarget.com/news/article/0,289142,sid14_gci1367020,00.html?track=sy160">Microsoft has issued a warning about</A> a serious vulnerability in the FTP service of Microsoft Internet Information Services (IIS) versions 5.0, 5.1, and 6.0. This article includes links to further information and Microsoft's workaround.