Save DOS: The Ultimate Antidote to Vista's Bloat

"To deny the world's computer users access to DOS is to deny them a familiar, powerful, and affordable operating system. But that's precisely what Microsoft did when it discontinued sales of MS-DOS on November 1, 2001--foisting Windows onto corporate and home users alike, whether they wanted it or not. It isn't too late to right that wrong."

http://www.pcworld.com/article/id,143819-c,dos/article.html