| Previous | Next |
| NS_E_PLAYLIST_ENTRY_NOT_IN_PLAYLIST | NS_E_PLAYLIST_RECURSIVE_PLAYLISTS |
NS_E_PLAYLIST_ENTRY_SEEK
Diagnosing NS_E_PLAYLIST_ENTRY_SEEK in Windows Media Services
What the server is validating
This result (0xC00D14B9) marks the playlist cannot position the selected entry at the requested point. Although the visible symptom may be interrupted playback, this HRESULT is raised at an administrative or distribution checkpoint.
The WMS playlist parser turns WSX/SMIL or another supported source into an in-memory playlist for a client., entry identity, nesting, current direction and shutdown state matter independently of whether the referenced media file exists. In a this result trace, save the parser-visible playlist after redirects or dynamic generation. While diagnosing it, the server acts on the resolved document and in-memory entry identities, not necessarily the text the operator first opened. The decisive question is whether the live object and values match that boundary; the base AllStat description alone does not reveal the object generation, selected plug-in or lower-level failure.
Code-specific failure anatomy
In a representative incident, the server reaches the playlist cannot position the selected entry at the requested point and rejects the operation before the caller can safely assume the next stage occurred. The incident record should therefore join entry type, requested offset, clip boundaries, broadcast/on-demand state and source seek capability with the object generation and the exact administrative or protocol request.
A useful negative control is seek to a supported boundary or use a seekable on-demand source for that entry. If that change advances the same this result call, the result supports this boundary. If it remains, return to the first lower-level event instead of broadening the repair.
The tempting but misleading response is changing playlist nesting while leaving an unseekable live source unchanged. That action does not test the distinction that matters here: unsupported entry rejects the operation class; entry seek reaches the entry but cannot satisfy the position. This distinction is also why monitoring should retain the symbolic name instead of storing only a generic COM failure.
Build a reproducible incident record
| Evidence | Why it matters for this HRESULT |
|---|---|
| Decisive state | entry type, requested offset, clip boundaries, broadcast/on-demand state and source seek capability. |
| Owning object | Record the server, publishing point, playlist, namespace node, plug-in or cache item that returned this result, including its creation or restart time. |
| First lower-level result | Preserve the earliest Win32, socket, COM, parser or plug-in event before the HRESULT; later wrappers can map several causes to it. |
| Controlled comparison | Use a known-good object of the same type and vary only the precondition described as “the playlist cannot position the selected entry at the requested point”. |
| Security-sensitive data | Log identifiers, lengths, hashes and redacted URLs where possible; do not publish passwords, authorization files or unrestricted client data. |
A controlled correction
- Capture
0xC00D14B9, it, the exact API/administrative action and the first failure timestamp. - Preserve entry type, requested offset, clip boundaries, broadcast/on-demand state and source seek capability.
- confirm that the object still belongs to the current WMServer, publishing-point or presentation generation.
- Perform one isolated experiment: seek to a supported boundary or use a seekable on-demand source for that entry.
- Repeat the original the operation through the same protocol and service account; do not substitute a different client-side test.
- After it, verify the expected next state and retain any later HRESULT as a separate pipeline result.
For automated tests, assert both the HRESULT and the resulting publishing-point, playlist, plug-in or archive state.
Do not merge nearby HRESULT values
Primary distinction: unsupported entry rejects the operation class; entry seek reaches the entry but cannot satisfy the position.
| Nearby result | Different checkpoint |
|---|---|
NS_E_PLAYLIST_RECURSIVE_PLAYLISTS | Compare its own symbolic boundary and the first failing call; it must not be grouped automatically with it. |
NS_E_PLAYLIST_ENTRY_NOT_IN_PLAYLIST | Relative to it, this neighboring result belongs to another state or validation branch even when the user-visible symptom is similar. |
NS_E_PLAYLIST_TOO_MANY_NESTED_PLAYLISTS | Use the object type and operation sequence to determine which result is authoritative. |
Interpret the retest
| Retest observation | Interpretation |
|---|---|
| The same call still returns it | The rejected precondition has not changed, or the caller is still using an old object/configuration generation. |
| The operation advances and a later code appears | The boundary was cleared. After it, diagnose the new code at its own source, parser, sink, network or client stage. |
| A new object succeeds while the retained object fails | Object lifetime or stale context is part of the incident; update lifecycle handling rather than applying a machine-wide repair. |
| Only one publishing point, playlist, cache key or plug-in fails | The evidence favors object-specific configuration or content over a server-wide outage. |
Changes that do not establish the cause
- changing playlist nesting while leaving an unseekable live source unchanged.
- avoid changing the publishing point, protocol, content and plug-in set in one test., such a test cannot show which precondition cleared the code.
- Do not suppress it or replace it with a generic “media server error”; retain the symbolic code and owning operation in telemetry.
Technical references
- Server-Side Playlists
- System Playlist Parser Plug-ins
- Programming Playlists
- Microsoft HRESULT registry
Close the incident only after it clears on a current object.
Looking for a different code? Search another status or error code.