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NS_E_INVALID_INDEX2
NS_E_INVALID_INDEX2 — 0xC00D00D9
The built-in message is only the immediate status; the useful boundary is that a Windows Media component rejected an ordinal for a specific collection or internal table represented by this second index code.
Start at the returning layer
Windows Media server and SDK calls operate on stateful collections and objects. In the context of secondary invalid index result, preserve the exact returning API, object identity, enumeration generation, and input representation; similar English messages can refer to different namespaces or lifecycle stages. Locate the first component changing state in secondary invalid index result and distinguish later summary errors.
Important distinction. The duplicate wording does not prove the two constants are interchangeable; preserve the exact returning API and constant.
Minimum useful evidence
- Returning API, ordinal, collection count, object version, and parent identity
- Enumeration order and any mutation between enumeration and access
- Caller assumptions about indexing base and filtered entries
- Same operation using stable IDs or a fresh enumeration
Preserve the smallest reproducible evidence set and redact client content, credentials, and private network details before sharing it.
Separate state from data
- Test zero, last valid, and one-past-end values.
- Perform lookup immediately after enumeration with mutation disabled. Keep media bytes, server identity, and unrelated publishing-point settings fixed.
- Compare the API path that returns NS_E_INVALID_INDEX with this one. Use a disposable publishing point or maintenance window when the test can alter server or storage state.
Nearby states and false leads
| Observed comparison | Interpretation |
|---|---|
| A known-good object succeeds through the same component | The platform path exists; concentrate on the production object, identity, metadata, or state captured above. |
| The control fails at the same first operation | Preserve server, storage, plug-in, topology, and network evidence before modifying media or publishing-point data. |
| The status changes after one deliberate adjustment | The failure point changed; the replacement status now describes the next contract to investigate. |
Verification after correction
Correction: Validate the index against the current collection used by that API and avoid translating distinct status codes prematurely.
Accept the repair only when boundary behavior is documented for the exact API and collection changes no longer cause stale-ordinal access.
Technical references
These sources describe the API, service architecture, and status values relevant to this diagnosis: Check version-specific behavior against the Windows Media Services and SDK generation that produced the event.
- Microsoft Open Specifications: HRESULT values — defines the formal status.
- Microsoft: Windows Media Services 9 Series SDK — documents the relevant API or lifecycle.
- Microsoft: Windows Media Services SDK architecture — provides the architecture, format, or protocol context.
- Microsoft: programming the Windows Media server object model — supports the controlled verification criteria.
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