In tip 2886, How can I enable diagnostic event logging for Active Directory services, I discussed the Active Directory diagnostic event logging categories for Windows 2000, and how to enable differing levels of diagnostic logging.

The following Active Directory diagnostic event logging categories have been added for Windows Server 2003:

20 Group Caching                               21 Linked-Value Replication                               22 DS RPC Client                               23 DS RPC Server                               24 DS Schema 
NOTE: See tip 3351 » How can I enable Windows 2000 Group Policy Application Deployment debug logging?

NOTE: See the following Microsoft Knowledge Base articles:

HOW TO: Diagnose system problems with Event Viewer in Microsoft Windows 2000.

How to view saved Directory Service, DNS server, and file replication service event logs from another Windows 2000-based computer.