If you have CDS, you can use it instead of the Locator. Change the registry entries as shown:
HKEY_LOCAL_MACHINE
Software
Microsoft
Rpc
Name Service
NetworkAddress
HKEY_LOCAL_MACHINE
Software
Microsoft
Rpc
Name Service
Endpoint
Changing these entries will point to a gateway computer that is running the NSID. This will be used as the master locator. In the event of a crash, there will be no search for a replacement.