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NS_E_WMPIM_USERCANCELED
Diagnosing NS_E_WMPIM_USERCANCELED during Windows Media rights backup or connectivity
NS_E_WMPIM_USERCANCELED (0xC00D1127) is returned when the connection workflow ended because the user or hosting application canceled it.
Preserve one asynchronous operation record containing the selected path, event listener, network resource and license-store status. Record what the Player had already completed because later retries often replace the original evidence. The specific rejected condition is the connection workflow ended because the user or hosting application canceled it.
Backup/restore boundary
AllStat already supplies the standard user-facing description for this HRESULT; this custom block instead isolates the additional technical boundary. Earlier success in file lookup, network connection, parser creation or graph construction does not prove that the later the operation is valid.
Case-specific checkpoint: UI command, cancellation callback, operation ID, timing and whether any socket was opened. The controlled comparison for this HRESULT is: repeat without dismissing connection prompts and log the cancellation token through completion.
Closest distinction: NS_E_WMPIM_DIALUPFAILED means connection establishment was attempted and failed.
Preserve the operation record
| Capture | Why it matters for this HRESULT |
|---|---|
| Object or resource | UI command, cancellation callback, operation ID, timing and whether any socket was opened |
| State snapshot | Record the Player openState/playState or operation phase, object identity and exact timestamp when this result was returned. |
| First lower result | Keep the earliest Win32, Winsock, COM, parser, codec, DRM or device result that appears before this result. |
| Comparison record | Use one known-good case that follows the same API, protocol and component path while changing only the rejected precondition. |
Safe controlled retry
- Start from the original call and log
0xC00D1127together with its object and operation phase. - Collect UI command, cancellation callback, operation ID, timing and whether any socket was opened before changing the machine.
- Use this single-variable test: repeat without dismissing connection prompts and log the cancellation token through completion.
- repeat on a fresh object if the original predates a configuration, device or resource change.
- validate the expected next operation, not just initial open or object creation.
Interpreting completion
| Retest outcome | Interpretation |
|---|---|
| Same this result on the same object | The governing state or value is unchanged, or the caller is reusing an object created before the relevant change. |
| Fresh object succeeds | Lifetime, cached configuration or stale playlist/graph state contributed to this result. |
| A later HRESULT appears | The rejected condition — the connection workflow ended because the user or hosting application canceled was cleared for this HRESULT; diagnose the new code at its own layer. |
| Only one item or endpoint fails for this HRESULT | The evidence favors resource-specific data, rights, routing or device state rather than a global Player failure. |
Actions that obscure the cause
- retrying automatically in a loop that ignores an intentional cancel.
- Do not discard the first occurrence by repeatedly invoking Play, open, save or retry; later events can replace its original state.
- do not publish credentials, private URLs, license material or complete protected-content headers; retain only redacted identifiers, lengths, hashes and protocol fields.
Technical references
- Backing up and restoring DRM licenses
- Backing up and restoring licenses
- Windows Media DRM client interfaces
- WM_BACKUP_RESTORE_STATUS
- Microsoft HRESULT registry
Retain before-and-after evidence for this HRESULT so object recreation or content replacement is not mistaken for random retry success.
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