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NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE
Practical scope of NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE
This HRESULT is produced at moving a completed temporary file into its final Player destination. This result belongs to background download jobs and windows media packages, not to an undifferentiated “Windows Media problem.”
Pipeline position
At the checkpoint, the Player’s download manager coordinates an owner window, a plug-in, background job identity, temporary files and final completion or cancellation; A downloaded.wmd package adds an extraction and cataloguing phase after transfer. The page-specific boundary is moving a completed temporary file into its final Player destination.
Receiving all network bytes is not the same as completing the job, moving the temporary file or successfully unpacking and cataloguing a Windows Media Download package. In a typical failing run, transfer completes but antivirus or another process locks the destination.
Reproduction record
| Evidence | Why it matters for plugin failedtomovefile |
|---|---|
| Producing object and operation | job GUID and Player signature, BITS/job state, expected and actual file count, remote and local names, temporary path, completion/cancel request, plug-in and callback identity, COM apartment, WMD extraction result and first underlying HRESULT |
| Decisive observation | temporary/final paths, volumes, open handles, overwrite policy and MoveFile result |
| Generation identity | Record the same disc, device, job or Player operation generation that returned this result; a reconnect or media change creates a different test. |
| Underlying result | Keep the first device, filesystem, COM, codec, DirectShow, IMAPI or BITS result seen before the Player mapped it to this result. |
| Controlled comparison | Repeat the producing call after changing only this condition: release conflicting handles and move to a writable destination on a controlled retry. |
Reading the evidence
| Observation | Interpretation |
|---|---|
| The recorded values match the boundary | The result is consistent with moving a completed temporary file into its final Player destination; correct that state before changing unrelated codecs, drivers or playlists. |
| A lower layer failed before this result | Preserve that earlier HRESULT or device result because it may be only the Player-level mapping. |
| The same call passes after one isolated change | The comparison supports the plugin failedtomovefile diagnosis rather than a broad installation failure. |
| The code changes after retesting it | The boundary was passed; diagnose the new HRESULT as the next independent stage. |
It scopes the failure to moving a completed temporary file into its final Player destination.
Verification procedure
- Capture
0xC00D1264, it, the exact Player/API operation and the first timestamp at which it appears. - Save temporary/final paths, volumes, open handles, overwrite policy and MoveFile result; do this before ejecting media, reconnecting a device, canceling a job or rebuilding the Player object.
- correlate the result with job GUID and Player signature, BITS/job state, expected and actual file count, remote and local names, temporary path, completion/cancel request, plug-in and callback identity, COM apartment, WMD extraction result and first underlying HRESULT.
- Reproduce once with the original source and destination, then apply only this change: release conflicting handles and move to a writable destination on a controlled retry.
- Create a fresh operation generation and verify that the original call advances beyond the plugin failedtomovefile boundary.
Results that may look similar
| Related result | Different diagnostic boundary |
|---|---|
NS_E_BKGDOWNLOAD_CALLFUNCFAILED | executing a requested plug-in function that returned a non-timeout failure |
NS_E_BKGDOWNLOAD_PLUGIN_FAILEDINITIALIZE | initializing the download-manager plug-in instance and its dependencies |
NS_E_BKGDOWNLOAD_CALLFUNCTIMEOUT | waiting longer than allowed for a download plug-in callback |
Change the smallest responsible condition
The targeted action is to release conflicting handles and move to a writable destination on a controlled retry. While retesting it, keep unrelated media, device, playlist and network values unchanged.
When verifying it, do not delete the job or temporary file before recording its state, owner signature and file list; Completion and cancellation are terminal operations and must not be retried blindly.
References
- BITS interfaces and job objects.
- Completing and canceling a BITS job.
- BITS return values and job-state failures.
- Windows Media Download packages.
- Creating the COM Global Interface Table.
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