- Login to the Change Auditor Client
- Click View | Administration | Auditing | Active Directory
- Click Add

- On "Active Directory Wizard" select "This object and all child objects"
- Add the DFS-Configuration object (found under the System container in AD)

- Type "msDFS-namespaceAnchor" under the "UnAudited Object class, and add the msDFS-NamespaceAnchor object class
- Click finish

- Select the Searches tab
- Create a new search
- Under the What tab add msDFS-NamespaceAnchor event class
- Click Save
- Click Run to run the search

This is what the search result will show after adding a namespace:
When a namespace is deleted:

The Action section of the event will show if it is an Add or a Delete