Hi, After installing terminal service, I am not able to open active directory. It says " Naming information can't be located because: Library not registered. Contact your system administrator to verify that your domain is properly configured and is currently online." . If I open add remove programes in control pannel nothing is visible. Still my users are able to login to the server and roaming profile is also working. But I am not able to create new user. Could anyone help me to clear this problem. Incase if format and install again do I need to reconfigure all the systems? Regards & Thanks George