CS Tools - description from Softdepia.com:
CS Tools is a great administrative tool that all Windows NT/2000 administrator should have.
It is a great time saver with many features to make the job of administrating hundreds to thousands of users as easy as 1,2,3.
This program can save you days to weeks of work on a huge domain with hundreds to thousands of users with its "Bulk Administration" and remote feature
CS Tools is a "Free to try" program. You can download and try it for an evaluation period.