Microsoft has put up a response on their security blog concerning the IIS "0day".  They say that only installations in a specific "non-default" and "unsafe configuration" are vulnerable to the condition.  Also they note that if the administrator had not altered the default configuration and followed best practices in the securing of the webserver, then this exploit wouldn't work.

Unfortunately, we know that doesn't always wind up being the case.  Read more of their blog post here.

Check out Patrick's Post here.

-- Joel Esler | http://blog.joelesler.net | http://twitter.com/joelesler