The final major pre-release of Windows Vista—Release Candidate 1 (RC1)—is now available through the Customer Preview Program (CPP). Customer participation and feedback are integral parts of our development process. If you decide to install and test RC1, thank you for being part of the Windows Vista team!
Note: This is beta code and should not be used in a production environment or on a primary computer in the home. RC1 is intended for developers, IT professionals, and technology experts to continue or begin their testing of Windows Vista. Before you decide to use RC1, you should feel comfortable with installing operating systems, updating drivers, and general PC troubleshooting. Some risks of using beta operating systems include hardware and software incompatibility and system instability. If you have concerns about installing this beta software on your computer, we encourage you to obtain the final release version of Windows Vista when it is available in 2007.
Access to the Customer Preview Program is limited. Once the program capacity has been reached, the program will be closed and no new orders will be accepted.
Download Link: http://www.microsoft.com/windowsvist...y/preview.mspx