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NS_E_FILE_WRITE
Diagnosing NS_E_FILE_WRITE
0xC00D0018 means Windows Media Services reached a file write and could not commit the requested bytes. Treat capacity and write permissions separately from file-open failures.
Evidence to collect
- destination path, service identity and exact write offset;
- requested versus completed byte count and the first filesystem/storage error;
- free space, quota and any file-size or volume limit relevant to the destination;
- share/locking state and whether another process replaced, truncated or exclusively opened the file.
Focused test
Write the same-sized block at the same stage under the service account while recording free space and the native result. Distinguish a zero/short write caused by capacity from access denied, sharing violation or media/storage failure.
Verification
Repeat the original server operation and verify the expected byte count is durably written to the intended file. A successful write to a different path is only comparison evidence.
Technical references
- Expanded use of publishing points
- Sending ASF data to a publishing point
- Receiving a live stream
- Microsoft HRESULT values for the Windows Media namespace
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