Utility to see Logins and users on an instance

Use below link to download it:

http://cid-2512e6af14d229c4.skydrive.live.com/self.aspx/SQL%20Server%20Utilities/Instance%20Users%20and%20Logins%20Details.zip

Description:
You can see available logins on an instance and users list in a databases, their fixed roles at server and database level, categorized as server login and database user, Object level permission details.

Pre-requistes:
.Net Framwork 2.0 installed
Only for SQL Server 2005+