I am not certain that the KXRPC needs to be on a DC.
Borrowing from the manual...
quote:
The server side of the RPC interface is provided in Kxrpc.exe, and this should be installed and run on one or more Windows NT systems. The KiXtart RPC service can run on any Windows NT system: a workstation, a standalone server, or a logon server. The system must be either a member of the logon domain or a member of a resource domain that has a trust relationship with the logon domain.
The DC is the logical place for it however.
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