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OLE_S_USEREG
OLE requests registry-based information
OLE_S_USEREG is HRESULT 262144 (0x00040000) from winerror.h. AllStat describes this result as “Use the registry database to provide the requested information.” The high-order severity bit is clear, so this is a success result, but it carries more information than plain S_OK.
The OLE operation succeeded by directing the caller to use registered class information rather than data supplied by the object instance.
Where the result is encountered
- This result can appear in OLE object creation or activation helpers; record the producing interface and method rather than inferring behavior from the symbolic name alone.
- This result can appear in class metadata and verb discovery; record the producing interface and method rather than inferring behavior from the symbolic name alone.
- It can appear in legacy embedding code that can obtain information from either an object handler or registration database; record the producing interface and method rather than inferring behavior from the symbolic name alone.
The same numeric success value can be mishandled when a wrapper exposes only a Boolean. Keep the original HRESULT until the code-specific outputs and state transition have been evaluated.
Diagnostic sequence
- capture the raw HRESULT
0x00040000immediately after the returning method and record whether the caller usedSUCCEEDED,FAILED, equality testing, or exception translation. - Identify the exact owner of it: interface, method, object instance, provider or filter version, thread or apartment, and operation phase.
- Validate the decisive contract boundary for it: the class registration is present, correctly scoped for process bitness and user/machine context, and represents the object class actually being activated.
- inspect every output parameter, count, status array, returned interface, or side effect that the method documentation associates with this success-with-information result.
- Compare the observed state before and after it; do not assume that a success severity bit means every optional sub-operation completed.
- reproduce the smallest request with the same object state and then change only the condition identified by the evidence before repeating the operation.
State boundary that must be proved
The central question for it is whether the class registration is present, correctly scoped for process bitness and user/machine context, and represents the object class actually being activated. The HRESULT alone confirms neither unrelated work nor the quality of optional outputs.
A reliable interpretation of it names the exact method contract, the object generation, and the outputs that remain valid. This prevents a success-with-information result from being promoted to full success or demoted to a generic error.
Correct handling, retry, and recovery
Follow the documented registry lookup path and validate the class registration. Do not replace this status with a generic failure or silently invent object capabilities that are absent from registration.
Retry it only when the recorded state can change the documented outcome. Repeating the same call is inappropriate for a stable end marker, cancellation, unsupported format, adjusted property, or partial result whose completed side effects have not been reconciled.
Evidence and telemetry to preserve
- preserve CLSID and ProgID.
- preserve 32-bit versus 64-bit registry view.
- preserve registration owner and installation version.
- preserve requested OLE metadata such as verbs or presentation.
- preserve the fallback path selected after the HRESULT.
Also record ole_s_usereg_operation, ole_s_usereg_object, ole_s_usereg_state_before, ole_s_usereg_state_after, UTC time, process and thread identifiers, and a correlation ID. Keep secrets out of logs while retaining GUIDs, CLSIDs, media subtypes, property IDs, row identities, and hashes needed to distinguish objects.
Difference from nearby HRESULT values
OLE_S_STATIC describes a static presentation object, whereas it tells the caller where to obtain metadata.
This distinction determines whether the caller should consume partial outputs, stop iteration, wait, reconfigure, notify the user, or perform no error recovery at all.
Developer and administrator guidance
Code handling it should test the exact documented value before a generic SUCCEEDED(hr) branch when outputs or control flow differ. Operational remediation for it should target the owning COM, media, Tablet PC, or OLE DB component instead of resetting unrelated services.
A support report for it should include decimal 262144, hexadecimal 0x00040000, the AllStat meaning, the owning API, and the first detailed status or output that explains why the method did not return ordinary S_OK.
Practical validation scenario
An OLE container asks an object handler for class information and receives it. It reads the registered verbs for the CLSID, records the registry view used, and avoids launching the server merely to query metadata.
The negative test should preserve the condition that produces it; the recovery test should alter only that condition and verify the final state as well as the HRESULT.
References
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