Microsoft is happy to announce the availability of LimitLogin v1.0, an application that adds the ability to limit concurrent interactive user logons in an Active Directory domain. It can also keep track of all logins information in Active Directory domains (without necessarily enforcing logons quotas).
The challenge of limiting concurrent logons in a distributed environment is huge, and although LimitLogin is not a "bullet proof" solution to all the aspects of this challenge, many customers might still find this tool helpful, as this capability has been highly requested by different customers (banks, ISPs, libraries etc) in numerous RFPs etc.
Download: LimitLogin v1.0