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NS_E_ALLOCATE_FILE_FAIL
NS_E_ALLOCATE_FILE_FAIL — 0xC00D0061
Diagnosing NS_E_ALLOCATE_FILE_FAIL
NS_E_ALLOCATE_FILE_FAIL identifies this Windows Media Services boundary: The NetShow Video Server could not allocate the requested block file; record the block type and requested file name.
Why this boundary matters
This HRESULT is tied to one concrete file operation. Preserve the canonical path, service identity, access and sharing mode, requested offset or allocation, and the first native filesystem/storage result; a later server HRESULT can hide the original failure.
Evidence to collect
| Field | What to preserve |
|---|---|
| Object | Canonical path or server-side file identity plus the exact open/read/write/allocate operation. |
| Security | Service account, desired access and sharing mode used by that operation. |
| Extent | Offset or allocation size, requested byte count and completed byte count where applicable. |
| Native result | The first filesystem/storage error returned before Windows Media maps it to this HRESULT. |
Decision rule
A path that exists is not enough: success requires the same service identity to complete the same file operation with the expected size and sharing semantics.
Focused test
Record the requested block type and file name, then capture the first allocation or filesystem error under the service account before changing the content layout.
Verification
Repeat the same file operation under the same service identity and against the same object. Require the requested open/read/write/allocation to complete with the expected byte count or state; a different native result is a new diagnostic boundary.
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
For automation, log the symbolic name as well as the numeric HRESULT. The symbolic name preserves the Windows Media subsystem boundary that a generic COM error formatter can obscure.
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