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CONVERT10_S_NO_PRESENTATION
OLE 1 stream converted without presentation data
CONVERT10_S_NO_PRESENTATION is HRESULT 262592 (0x000401C0) from winerror.h. AllStat describes this result as “Unable to convert OLESTREAM to IStorage.” The high-order severity bit is clear, so this is a success result, but it carries more information than plain S_OK.
The OLESTREAM-to-IStorage conversion completed but the source did not provide presentation data that could be converted into the destination storage.
Evidence and telemetry to preserve
- preserve source OLESTREAM size and hash.
- preserve destination CLSID and storage streams.
- preserve converter callback activity.
- preserve presence of native data versus presentation data.
- preserve rendering behavior with the original server unavailable.
Also record convert10_s_no_presentation_operation, convert10_s_no_presentation_object, convert10_s_no_presentation_state_before, convert10_s_no_presentation_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.
Where the result is encountered
- This result can appear in OleConvertOLESTREAMToIStorage migrations; record the producing interface and method rather than inferring behavior from the symbolic name alone.
- This result can appear in opening OLE 1 compound content in an OLE 2 container; record the producing interface and method rather than inferring behavior from the symbolic name alone.
- It can appear in archival conversion of embedded objects; 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.
State boundary that must be proved
The central question for it is whether the native object data and class information were preserved even though a cached visual presentation is absent. 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.
Diagnostic sequence
- capture the raw HRESULT
0x000401C0immediately 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 native object data and class information were preserved even though a cached visual presentation is absent.
- 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.
Difference from nearby HRESULT values
OLE_S_STATIC reports a usable static presentation; it reports that conversion produced no presentation cache.
This distinction determines whether the caller should consume partial outputs, stop iteration, wait, reconfigure, notify the user, or perform no error recovery at all.
Correct handling, retry, and recovery
Keep the converted storage if native data is valid, then regenerate a presentation by running the object server when possible. Clearly mark documents that cannot render offline.
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.
Practical validation scenario
A migration tool converts a legacy spreadsheet object whose native stream is intact but preview metafile is missing. It saves the storage, opens the server to rebuild the preview, and verifies offline display afterward.
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.
Developer and administrator guidance
When it crosses process, RPC, scripting, or managed-code boundaries, preserve the unsigned 32-bit value and symbolic name. A signed decimal rendering can obscure that the severity bit indicates success and can lead to incorrect exception or retry behavior.
A support report for it should include decimal 262592, hexadecimal 0x000401C0, the AllStat meaning, the owning API, and the first detailed status or output that explains why the method did not return ordinary S_OK.
References
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