RPC Endpoint Mapper Client Authentication

Enabling this setting directs RPC Clients that need to communicate with the Endpoint Mapper Service to authenticate as long as the RPC call for which the endpoint needs to be resolved has authentication information.

Disabling this setting will cause RPC Clients that need to communicate with the Endpoint Mapper Service to not authenticate. The Endpoint Mapper Service on machines running Windows NT4 (all service packs) cannot process authentication information supplied in this manner. This means that enabling this setting on a client machine will prevent that client from communicating with a Windows NT4 server using RPC if endpoint resolution is needed.

By default, RPC Clients will not use authentication to communicate with the RPC Server Endpoint Mapper Service when asking for the endpoint of a server.

Note: This policy will not be applied until the system is rebooted.

Supported on: At least Windows XP Professional with SP2

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Microsoft\Windows NT\Rpc
Value NameEnableAuthEpResolution
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

rpc.admx

Administrative Templates (Computers)

Administrative Templates (Users)