What is the limit for users within a group?

For Windows 2000 Active Directory environments, the recommended maximum number of members in a group is 5,000. This recommendation is based on the number of concurrent atomic changes that can be committed in a single database transaction. So far, testing in this area has yet to reveal any new recommended limits to the number of members in a group or any other linked multi-valued attribute. Production environments have been reported to exceed 4 million members, and Microsoft scalability testing reached 500 million members. For more information check this article. Thanks

What is the limit for Windows 2003 AD environments? Windwos 2008 R2?

the linked article covers all versions of windows server

Hello, all AD related limits doesn't matter which version are listed in: http://technet.microsoft.com/en-us/library/active-directory-maximum-limits-scalability(WS.10).aspxBest regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.