IIS on XP Home
Yep, that's possible.
My machine had crashed yesterday, and is in the lab right now. Looks like the vent has gone crazy.
As usual, I had a really urgent .NET thingy to finish, so I wanted to use my wife's laptop (IBM R40, cute little machine) for this.
There was no problem installng the VS.NET. Since it went so well, I though to myself: "Well, why won't we try to install a web server?".
I started with Cassini, but the VS.NET didn't get used to it.
I then found this article, and voila! after 15 mins I had IIS on my wife's machine up and running.
I'm sure she is very happy about it.