I remember M$ touting a new file system called CIFS. I wonder what happened
to that... This time they're playing the WinFS horn in their new OS
WinFS is supposed to be M$'s new file system that will make searches faster
by maintaining multiple indexes. Also, it also has a built-in RDBMS engine
for tracking files...
More here: http://www.tomshardware.com/storage/20030617/index.html