What does HRESULT 0xC00D10A8 (NS_E_WMPCORE_PLAYLIST_STACK_EMPTY) mean?

NS_E_WMPCORE_PLAYLIST_STACK_EMPTY

Where the Player stopped

NS_E_WMPCORE_PLAYLIST_STACK_EMPTY is HRESULT 0xC00D10A8. At the playback core playlist stack empty checkpoint it means the nested-playlist return path has no parent frame on the playlist stack; the result belongs to the Windows Media playlist and metafile state machine, not to an unspecified Player failure.

An additional test is to record nesting transitions and which child completion attempted the pop; that evidence is more useful than reinstalling the Player or changing several unrelated settings at once.

Why the producing component matters

Before changing state, remember that Windows Media metafiles are XML documents, but a well-formed document can still violate required ASX element and attribute rules. A second platform rule is that relative references are resolved against the containing metafile URL, and nested playlists introduce a stack and a new base URL rather than a simple flat list.

Representative case: An asynchronous child completion arrives after the parent playlist was cleared.

How to prove the condition

1. Preserve 0xC00D10A8, the ErrorItem context and the object instance involved in the failing operation.
2. Confirm the failure directly: record nesting transitions and which child completion attempted the pop.
3. After you fix unbalanced playlist state or recreate the playlist manager generation, recreate the owning WMP object and verify that the corrected generation completes.

Minimum useful incident record

Capture state before Player cleanup:

• What to verify: record nesting transitions and which child completion attempted the pop.
• Artifact: ASX version and element stack at the failure.
• State: resolved base URL for REF or ENTRYREF targets.
• Object identity: current item index, alternate index and nested-playlist depth.
• Underlying evidence: repeat/event state and the media object expected at its start or end.
• Correlation: playlist URL, format, response content type and exact downloaded bytes.

Targeted fix

Change the responsible precondition rather than masking the symptom: fix unbalanced playlist state or recreate the playlist manager generation.

Neighboring codes to separate

Completion criteria

Keep one fixture that reproduces 0xC00D10A8 and one corrected fixture that changes only the identified precondition.

Technical references

• Windows Media metafile reference — API or format context.
• Metafile elements reference — documentation for this result.
• ENTRYREF element — normative or platform material relevant to this result.
• REPEAT element