Windows Server 2008 ships with the Reliability and Performance Monitor (RPM) snap-in.  On DCs, RPM incorporates an Active Directory Diagnostics feature that includes the abilility to track LDAP searches against a DC.  The amount of information captured can be very useful when troubleshooting LDAP issues.

This article provides a step by step guide on how to use RPM to track LDAP searches.

This mapping can be useful for those who like to launch snap-ins from the command line or from Start -> Run.

This article provides information on how to migrate from FRS to DFS-R