If the Windows source code was released, initially it would be very similar to the DeCSS affair. Microsoft would be flinging lawsuits left and right under the same laws the MPAA has. Then there would be the "Windows source code mirror lists" all over the place as Microsoft continues to try to kill them all. Of course, they wouldn't be able to, so soon mutant Windows versions would be spreading around the internet. Groups devoted to creating their own version of Windows would be created (much like the open source groups today). When people finally looked at the programming, Microsoft would then be embarrassed as everyone saw how poor their programming was (at least thats what many people who have seen the code say). Also, with the windows API completely open, Netscape, Real, and other companies who have been bumped by Microsoft would once again gain steam being able to integrate directly into Windows.