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NS_E_WMPCORE_MISNAMED_FILE
Diagnosing NS_E_WMPCORE_MISNAMED_FILE
This result is HRESULT 0xC00D1099. At the playback core misnamed file checkpoint it means the file extension/name disagrees with the content or supported media interpretation; the result belongs to the WMP playback core, graph and media-resource boundary, not to an unspecified Player failure.
Evidence that separates the result
| Result | Different boundary |
|---|---|
NS_E_WMPCORE_CODEC_NOT_TRUSTED | The candidate codec fails the trust/signature policy required for installation/use |
NS_E_WMPCORE_CODEC_NOT_FOUND | The graph cannot find the specific codec required for a media stream |
NS_E_WMPCORE_CODEC_DOWNLOAD_NOT_ALLOWED | The required codec is absent and Player policy/settings prohibit automatic acquisition |
Representative case: A downloaded HTML response is stored with a media extension. The example isolates only the producing component.
Verification
Repeat the original operation with a fresh owning object after the identified precondition is corrected. Treat this result as resolved only when that same operation passes this stage; preserve any later HRESULT as a separate failure.
Technical references
- Windows Media Player SDK — documentation used to identify the producing boundary of this result.
- Player MediaError event — normative or platform material relevant to it.
- ErrorItem object — API or format context for this HRESULT.
- Supported protocols and file types It.
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