| Previous | Next |
| NS_E_WMPBR_BACKUPCANCEL | NS_E_WMPBR_ERRORWITHURL |
NS_E_WMPBR_RESTORECANCEL
Diagnosing NS_E_WMPBR_RESTORECANCEL during Windows Media rights backup or connectivity
NS_E_WMPBR_RESTORECANCEL (0xC00D1132) is returned when a DRM license restore was interrupted by user or application cancellation.
Preserve one asynchronous operation record containing the selected path, event listener, network resource and license-store status. The actionable checkpoint is a DRM license restore was interrupted by user or application cancellation. Although this result may appear as “cannot play” or “cannot save,” it belongs to a specific object state that should be diagnosed directly.
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: cancel event, source backup identity, restore stage, status HRESULT and local license-store changes. The controlled comparison for this HRESULT is: restore from a verified backup while keeping the status listener alive until the final completion event.
Closest distinction: NS_E_WMPBR_DRIVE_INVALID rejects the restore source before a normal restore can proceed.
Preserve the operation record
| Capture | Why it matters for this HRESULT |
|---|---|
| Object or resource | cancel event, source backup identity, restore stage, status HRESULT and local license-store changes |
| 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
- Capture the resource identity and cancel event, source backup identity, restore stage, status HRESULT and local license-store changes.
- verify that the caller uses the current Playlist, Media, Network, graph, device or DRM object generation.
- Run the narrow experiment: restore from a verified backup while keeping the status listener alive until the final completion event.
- Do not mix the result experiment with a codec pack, Player reset or broad registry cleanup.
- After this result, treat a new specific HRESULT as evidence that this boundary was cleared.
Interpreting completion
| Retest outcome | Interpretation |
|---|---|
| Same it 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 it. |
| A later HRESULT appears | The rejected condition — a DRM license restore was interrupted by user or application cancellation — 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
- deleting the local license store after a canceled restore.
- 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
The result fix is demonstrated by the same Player path succeeding with the same resource, not by another application opening it.
Looking for a different code? Search another status or error code.