The login script for the users in the domain does not run anymore. If I run the login script manually it works, but if the user logs in to the domain, nothing happens. I have added and removed the user/computer from the domain, run windows update on the server. The only error I see in the event viewer happens to be on the local computer. Event id:4100 The COM+ Event System failed to create an instance of the subscriber {6295DF2D-35EE-11D1-8707-00C04FD93327}. CoCreateInstanceEx returned HRESULT 8000401A. I have tried the fix on www.eventid.net, but it is not applicable. CLID {6295DF2D-35EE-11D1-8707-00C04FD93327}: mobsync (Synchonization Manager) Error code 8000401A: The server process could not be started because the configured identity is incorrect. Check the username and password. As per Microsoft: "To resolve this behavior, use the Regsvr32 tool to unregister the Mobsync.dll file from the server.". Suggestions from newsgroups: Check HKEY_CLASSES_ROOT\AppID\{6295DF2D-35EE-11d1-8707-00C04FD93327} You should see this: - (Default) REG_SZ MobSync - RunAs REG_SZ Interactive User If the RunAs value is misspelled or has wrong information, make it look like this. The registry setting is correct.