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RPC_NT_PROCNUM_OUT_OF_RANGE
The client called a procedure number the interface does not expose
RPC calls identify operations by procedure number within an interface. This status means the client request does not map to a valid operation for the server interface version that was selected.
This often indicates IDL version skew, wrong interface UUID/version, or a client using stubs that do not match the server currently registered at the endpoint.
What to inspect
- Compare client and server interface UUIDs and versions.
- Check that both sides were rebuilt from the same IDL.
- Inspect endpoint mapper results when multiple server versions are registered.
References
- Microsoft: Registering RPC interfaces
- Microsoft Open Specifications: MS-RPCE
- Microsoft Open Specifications: NTSTATUS values
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