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NS_E_WMPCORE_ERROR_DOWNLOADING_PLAYLIST
Diagnosing NS_E_WMPCORE_ERROR_DOWNLOADING_PLAYLIST
0xC00D109D maps to this result. Its actionable interpretation is the playlist resource could not be downloaded completely or with an acceptable response within the Windows Media playlist and metafile state machine; the producing mechanism is the layer that turns ASX/WAX/WVX/WMX or library playlists into Media objects, resolves REF and ENTRYREF URLs, expands nesting, handles EVENT and REPEAT blocks and advances to alternates.
Evidence that separates the result
| Field | What to record |
|---|---|
| Decisive check | Capture final URL, status/content type, byte length and redirect/proxy result |
| Artifact identity | Resolved base URL for REF or ENTRYREF targets for the playback core error downloading playlist reproduction |
| Runtime state | Current item index, alternate index and nested-playlist depth for this reproduction |
| Owning object | Repeat/event boundary and the media object expected at its start or end for this reproduction |
| Lower-level result | Playlist URL, format, response content type and exact downloaded bytes for this reproduction |
| Correlation | ASX version and element stack at the failure for this reproduction |
Representative case: A playlist URL returns a login page or truncated response. The example isolates only the producing component.
Focused test and correction
- Perform the code-specific test: capture final URL, status/content type, byte length and redirect/proxy result.
- Make the narrow correction—restore transport/resource access and validate the downloaded bytes before parsing—and repeat the same producing operation.
Nearby results with different boundaries
| Result | Different boundary |
|---|---|
NS_E_WMPCORE_FAILED_TO_BUILD_PLAYLIST | The core cannot turn the downloaded/loaded playlist representation into a usable Playlist object |
NS_E_WMPCORE_PLAYLIST_ITEM_ALTERNATE_NONE | The playlist item defines no alternate reference to use after its primary source fails |
NS_E_WMPCORE_PLAYLIST_ITEM_ALTERNATE_EXHAUSTED | All configured alternate references have already been attempted without success |
Verification
Repeat the original operation with a fresh owning object after the identified precondition is corrected. Treat this result as resolved only when that same operation passes this stage; preserve any later HRESULT as a separate failure.
Technical references
- Windows Media metafile reference — normative or platform material relevant to this result.
- Metafile elements reference — API or format context for this HRESULT.
- ENTRYREF element — documentation used to identify the producing boundary of this result.
- REPEAT element
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