Anon E. Muss writes "Microsoft has a new Secure Content Downloader tool that sounds an awful lot like a Bittorrent clone. It's described as a 'peer-assisted technology' where '[e]ach client downloads content by exchanging parts of the file they're interested in with other clients, in addition to downloading parts from the server.' Right now MSCD is just a time-limited preview, intended to support downloads of select Microsoft beta releases (e.g. Visual Studio 2008). If this test goes well, Microsoft will probably start using MSCD for all their large downloads. How do you feel about subsidizing Microsoft's bandwidth costs?"