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NS_E_WMP_MF_CODE_EXPIRED
Meaning at the producing boundary
The generated part of the What Is page already shows the standard AllStat description for this HRESULT. The additional test for the mf code expired condition is to record the Player and operating-system build plus the exact module version that returned the result; that evidence is more useful than reinstalling the Player or changing several unrelated settings at once.
What succeeds before this failure
State worth preserving
Capture the mf code expired state before the Player advances, reloads, rescans or destroys the owning object:
- Decisive check: record the Player and operating-system build plus the exact module version that returned the result.
- Artifact: selected graph/source/filter or codec identity and version for the mf code expired reproduction.
- State: audio/video device identity and driver generation for the mf code expired reproduction.
- Object identity: ordered ErrorItem queue with errorCode, errorContext and media object for the mf code expired reproduction.
- Underlying evidence: Player.URL, current media sourceURL and resolved final URL for the mf code expired reproduction.
- Correlation: play state and transition immediately before failure for the mf code expired reproduction.
Logs for the case should retain exact paths or URLs, hashes, object IDs, offsets and HRESULT order where applicable. For mf code expired, those logs should not contain credentials, protected-license payloads or unrelated library contents.
Reproduce without destroying evidence
- Preserve
0xC00D0FC0, the ErrorItem context and the object generation involved in mf code expired.
Related HRESULTs, different boundaries
| Result | Different boundary |
|---|---|
NS_E_WMP_WINDOWSAPIFAILURE | a lower Windows API failed without leaving a more specific error for the WMP wrapper |
NS_E_DEVICE_NOT_READY | the referenced device is present or selected but not ready for the requested operation |
NS_E_NO_ERROR_STRING_FOUND | the error subsystem has an HRESULT but no localized description string for this HRESULT |
Recovery at the right layer
How to know the repair is real
Practical interpretation
Technical references
- Windows Media Player SDK — API or format context for this HRESULT.
- Player MediaError event — documentation used to identify the producing boundary of this result.
- ErrorItem object — normative or platform material relevant to this result.
- Supported protocols and file types — API or format context for this HRESULT.
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