What does HRESULT 0x8001011B (RPC_E_ACCESS_DENIED) mean?

 
Previous Next
RPC_E_NO_GOOD_SECURITY_PACKAGES RPC_E_REMOTE_DISABLED

RPC_E_ACCESS_DENIED

COM/RPC authorization denied the call

RPC_E_ACCESS_DENIED is HRESULT 2147549467 (0x8001011B) from winerror.h. AllStat describes it as “Access is denied.” In the COM/RPC call control, message filtering, apartment routing, marshaling, security negotiation, or remote object lifetime, the code identifies a specific failure boundary and should not be replaced by a generic COM exception.

A generic “operation failed” message is insufficient for this HRESULT because the recovery decision depends on the exact lifecycle, security, marshaling, or state condition.

Where it is encountered

  • Cross-apartment or cross-process COM method invocation and activation. Record the interface, method, component version, thread, apartment, process, and correlation ID.
  • STA message filtering, reentrancy, call cancellation, timeout, or retry handling.
  • DCOM security initialization, proxy/stub marshaling, OBJREF processing, and server object lifetime.

The immediate focus for this HRESULT is a remote or cross-process invocation that reached security evaluation but the caller token, launch permissions, access permissions, or method policy did not authorize it. Keep this result attached to that operation; the same numeric severity outside the owning API does not supply enough context.

Decisive interpretation boundary

Before choosing recovery, verify that the effective client identity, requested interface and method, COM security blanket, and relevant ACL are known. The decisive boundary for this HRESULT determines whether the same object can continue, a new object is required, or policy must change.

Also confirm that all observed objects, tokens, buffers, proxies, metadata files, or ACLs belong to the current operation generation and were not retained from an earlier attempt.

Difference from nearby HRESULTs

It is authorization failure; RPC_E_REMOTE_DISABLED is process policy that disallows remote calls regardless of a specific ACL decision.

Merging it with the neighboring HRESULT would choose the wrong retry, recreation, authorization, or cleanup path.

Correct handling and recovery

Grant only the required permission to the correct principal, fix identity propagation, or reject the operation with clear audit data. Avoid broad Everyone permissions.

Reconcile partial output and server-side effects before attempting the operation again.

Practical scenario

A service account can activate a COM server but cannot invoke its management interface. The interface ACL grants the minimal method rights to that account.

A regression test should reproduce it, assert the raw HRESULT and all relevant outputs, then correct only the decisive condition and verify the intended success or neighboring failure result.

Lifetime, retry, and cleanup rules

After it, determine whether the current object, interface pointer, call context, token, stream, metadata reader, asynchronous operation, or access-control instance remains valid. Release only resources owned by the failing attempt, cancel callbacks through their documented mechanism, and avoid double close, double commit, repeated activation, or replay of a non-idempotent remote method.

The retry policy for this HRESULT should state the trigger, maximum attempts, cancellation owner, and reconciliation step for effects that may have completed elsewhere.

References

Looking for a different code? Search another status or error code.