MSN Search using ASP.NET v2 Profile? Nope.
I was just reviewing the proofs for my book chapter on ASP.NET v2.0's anonymous Profile feature and wondered if perhaps MSN Search was using it for the storage of settings. Looking at the cookies stored, it would appear not because the cookie names have "SRCH" in them. Still, there are GUID's in there, so they are storing the settings on their end.
Oh well, it just would've been super cool to see them using an off-the-shelf ASP.NET feature, a beta feature at that, for their killer search app. Certainly they'd be using their own Profile provider, but still, it would've been a neat thing to see!