| Previous | Next |
| NS_E_WMPXML_ATTRIBUTENOTFOUND | NS_E_WMPXML_EMPTYDOC |
NS_E_WMPXML_PINOTFOUND
Meaning at the producing boundary
The symbolic result NS_E_WMPXML_PINOTFOUND narrows 0xC00D0FB8 to the XML parser PI not found condition: the requested XML processing instruction is not present in the parsed document. Keep the XML parser PI not found boundary visible when a later dialog reduces it to a general media error.
An additional test is to record the processing-instruction target and the prolog bytes before the root element; that evidence is more useful than reinstalling the Player or changing several unrelated settings at once.
What succeeds before this failure
Two platform rules frame the diagnosis. First, an XML document can be well-formed yet still fail the Windows Media schema or object-model rules expected by the caller. In this case, parser position, source encoding and the exact bytes supplied to the final parse call are more useful than a generic “bad XML” dialog.
Representative case: A skin loader looks for the WMP version instruction in a generic XML file. The example isolates only the producing component.
State worth preserving
Capture state before Player cleanup:
- Decisive check: record the processing-instruction target and the prolog bytes before the root element.
- Artifact: last successful element, attribute or processing-instruction lookup.
- State: parser state when GetParseError, persist or lookup was called.
- Object identity: line/column or byte offset from any lower-level parser diagnostic.
- Underlying evidence: source URL or archive member and a hash of the exact XML bytes.
- Correlation: encoding declaration, byte-order mark and parser input length.
Log paths, hashes, IDs, offsets, and HRESULTs. Exclude secrets and unrelated content from logs.
Reproduce without destroying evidence
- Start with the symbolic value this result; do not diagnose the failure from the final dialog alone.
- Record the bytes or object state that produced this condition before automatic recovery mutates it.
- Exclude a stale callback or superseded object generation as the source of this event.
- Use this deciding observation for this condition: record the processing-instruction target and the prolog bytes before the root element.
- Apply the smallest supported remedy for this condition: add the required instruction in the supported syntax or stop treating it as mandatory.
Related HRESULTs, different boundaries
| Result | Different boundary |
|---|---|
NS_E_WMPXML_ATTRIBUTENOTFOUND | The requested named attribute or attribute index is absent on the current element |
NS_E_WMPXML_EMPTYDOC | The caller attempted to persist a parser object that contains no document data |
NS_E_WMPXML_PARSEERROR | The XML parser rejected the supplied document but exposed no more specific WMP parser result |
If this result is followed by a broader “cannot play,” “cannot load,” or “operation failed” result, preserve the earlier event. A later wrapper error may be secondary.
Recovery at the right layer
The targeted correction for this condition is to add the required instruction in the supported syntax or stop treating it as mandatory. Keep the original failing input until the same operation succeeds after one controlled change.
- Avoid rewriting the XML before preserving the failing bytes and parser position; it can destroy the artifact or state needed to explain this result.
- Avoid treating a missing optional node as proof that the whole document is malformed; that can replace the original HRESULT with a secondary failure from another layer.
How to know the repair is real
After correction, create a fresh Player, control, parser or playlist object and rerun the smallest reproducer for this HRESULT. Verify the resulting resource, list membership, saved file, library object or play state.
Practical interpretation
Use this result, 0xC00D0FB8 and the symbolic phrase in traces. Correlate search keys with API and object.
Technical references
- Windows Media Player SDK — documentation used to identify the producing boundary of it.
- Skin definition XML structure — normative or platform material relevant to it.
- Windows Media metafile reference — API or format context for this HRESULT.
- XML 1.0 specification It.
Looking for a different code? Search another status or error code.