| Previous | Next |
| NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE | NS_E_BKGDOWNLOAD_CALLFUNCTIMEOUT |
NS_E_BKGDOWNLOAD_CALLFUNCFAILED
Where this result occurs in the Player workflow
NS_E_BKGDOWNLOAD_CALLFUNCFAILED (0xC00D1265) marks executing a requested plug-in function that returned a non-timeout failure. Preserve that boundary even when the visible Player message is broader than the producing operation.
Mechanism
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 executing a requested plug-in function that returned a non-timeout failure.
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. A representative way to reach this result is that the worker invokes the plug-in successfully but the function fails to allocate a resource.
State snapshot
| Evidence | Why it matters for callfuncfailed |
|---|---|
| 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 | function identifier, arguments, thread/apartment, resource state and nested HRESULT |
| 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: repair the specific callback dependency and retry through a new operation generation. |
How to interpret the next test
| Observation | Interpretation |
|---|---|
| The recorded values match the boundary | The result is consistent with executing a requested plug-in function that returned a non-timeout failure; 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 callfuncfailed 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 executing a requested plug-in function that returned a non-timeout failure.
Controlled diagnostic sequence
- Capture
0xC00D1265, it, the exact Player/API operation and the first timestamp at which it appears. - Save function identifier, arguments, thread/apartment, resource state and nested HRESULT; 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: repair the specific callback dependency and retry through a new operation generation.
- Create a fresh operation generation and verify that the original call advances beyond the callfuncfailed boundary.
Nearby codes with different owners
| Related result | Different diagnostic boundary |
|---|---|
NS_E_BKGDOWNLOAD_CALLFUNCTIMEOUT | waiting longer than allowed for a download plug-in callback |
NS_E_BKGDOWNLOAD_PLUGIN_FAILEDTOMOVEFILE | moving a completed temporary file into its final Player destination |
NS_E_BKGDOWNLOAD_CALLFUNCENDED | aborting a callback because the Player/download service is terminating |
Focused correction
For this occurrence, repair the specific callback dependency and retry through a new operation generation. Recreate only the object that produced it and repeat the original operation against the same controlled input.
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.
Technical 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.
Looking for a different code? Search another status or error code.