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NS_E_ASX_INVALIDFORMAT
Understanding NS_E_ASX_INVALIDFORMAT in a Windows Media playlist
NS_E_ASX_INVALIDFORMAT (0xC00D1069) is returned when the ASX metafile parser rejected the document structure rather than a referenced media URL.
Distinguish in-memory Playlist state, WPL or ASX parsing, nested-list expansion, Media-object resolution and execution of referenced items. In this case, the failure condition is the ASX metafile parser rejected the document structure rather than a referenced media URL.
Minimal playlist experiment
- Freeze the current object state and collect the exact ASX text, XML line and column, root ASX element, ENTRY/REF nesting and character encoding.
- Reproduce this result once without automatic retries or fallback applications.
- Change only one precondition: reduce the document to ASX plus one ENTRY containing one REF, then add elements back until the parser fails.
- Compare the first nested status and next Player event with the failed run.
- After testing it, restore the original configuration if the change was diagnostic only.
What the result means
| Retest outcome | Interpretation |
|---|---|
| A later HRESULT appears | The rejected condition — the ASX metafile parser rejected the document structure rather than a referenced media URL — was cleared; diagnose the new code at its own layer. |
Actions that obscure the cause
- testing only the media URL outside the metafile.
Technical references
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