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NS_S_WMPBR_SUCCESS
Windows Media backup or restore completed successfully
NS_S_WMPBR_SUCCESS is HRESULT 856373 (0x000D1135) from Windows Media. The documented description is “Backup or Restore successful!” In the Windows Media Player, Windows Media Format, DRM, or Media Foundation state machine, the value reports a nonfailure state that must not be collapsed into plain S_OK.
Accepting this result requires proving the documented state rather than checking only SUCCEEDED(hr).
Where the status is encountered
- Windows Media Format source, writer, DRM, publishing-point, or installation operations;
- Media Foundation topology activation and remote-component setup;
What must be true before accepting it
Verify that all selected rights, metadata, and backup artifacts passed post-operation verification rather than relying only on the success status. The boundary determines whether the caller continues, waits, falls back, or ends the operation.
Difference from nearby results
NS_S_WMPBR_PARTIALSUCCESS reports limitations; it says the selected backup or restore scope completed without those omissions.
Correct handling and recovery
Finalize the operation, verify inventory counts and destination readability, and record the backup set identity. Keep recovery material protected as sensitive data.
Do not use an unchanged tight retry loop; it can duplicate effects or conceal a terminal state.
Practical scenario
A rights backup finishes and the application verifies the manifest, file count, and restore test before rotating the previous protected backup.
References
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