Windows 2000 is NOT RECOMMENDED for security-critical environments. It lacks important security features which are available in Windows XP and Vista. Microsoft currently provides security patches for Windows 2000, but the product is in its Extended Support Period, and this will end in June 2010. NSA recommends upgrading as soon as possible.
To assist our Windows 2000 user community, NSA has developed security configuration guidance for Windows 2000, with the cooperation of other government agencies and industry partners who provided their expertise and extensive technical review. The configuration guide for Microsoft Windows 2000 is being posted on the NSA web site and is presented in three parts: ".INF" files, configuration guides, and supporting documents..
NOTE: Follow these instructions to ensure that Microsoft Exchange will work with the Windows 2000 Security Configuration Guide.
A description of the files and how to modify the settings is available in the Guide to Securing Microsoft Windows 2000 Group Policy: Security Configuration Tool Set*.
**To download and uncompress zipped files you need to have winzip loaded on your local machine.