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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. NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE belongs to background download jobs and windows media packages, not to an undifferentiated “Windows Media problem.”
Pipeline position
At the NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE 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.
For NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE, 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 NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE; 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 NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE. |
| 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 NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE | Preserve that earlier HRESULT or device result because NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE 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 NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE | The NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE boundary was passed; diagnose the new HRESULT as the next independent stage. |
NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE scopes the failure to moving a completed temporary file into its final Player destination. The presence of NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE does not establish a system-wide media failure; verify its owning operation before changing unrelated Player components.
Verification procedure
- Capture
0xC00D1264,NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE, 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.
- For
NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE, 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 NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE, keep unrelated media, device, playlist and network values unchanged.
When verifying NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE, 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 for the NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE boundary
- 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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