Just saw this over on Scott’s blog – Microsoft have released a new SEO toolkit that plugs into the wonderful world of IIS7. Why IIS7? Why wouldn’t this be a stand alone tool?
Well apparently it relies on some of the IIS management API’s to weave it’s magic.SEO toolkit
You can get it here and it is completely free – comes in both x86 and x64 flavours.
Since it requires II7 you will have to have Vista, Windows 7 or Windows Server 2008.
This isn’t just for scanning the local machine either, although you access the tool via the IIS Management MMC console, it is capable of scanning and reporting on any URL, just make sure you select the root node in the IIS snap-in.

You can view the other great extensions for IIS 7 here: