Robert Fripp apparently worked on the Windows Vista startup sound. Here's a link to a 25-minute session where Fripp does his "Soundscapes" stuff:

http://channel9.msdn.com/showpost.aspx?postid=151853

Here's an apology from the cameraman: "Sorry it's a little dark. It was a dark room!"

I'm sure Fripp wouldn't have it any other way :-)