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NS_E_WMP_DRM_ACQUIRING_LICENSE
Meaning in the active workflow
The first actionable fact in NS_E_WMP_DRM_ACQUIRING_LICENSE is that a second Player rights request arrived while an acquisition transaction was already active. This result runs inside Windows Media Player rights processing, where the implementation handles the Player layer that opens protected media, queries the local license state, performs silent or interactive rights acquisition, validates DRM components and applies play, burn or sync restrictions.
To prove this boundary rather than infer it from a dialog, correlate content KIDs and acquisition operation IDs to determine whether requests were duplicated.
Diagnostic checklist
| Field | Value |
|---|---|
| Owner | operation, API/callback, object or session identifier, and component/device version associated with this result |
| Direct check | correlate content KIDs and acquisition operation IDs to determine whether requests were duplicated |
| Policy input | requested action plus the exact license, certificate, profile, output or registration property evaluated by this result |
Preserve the original generation
The object graph behind it includes content KID and header, license-store entry, requested action, acquisition URL, user/store context, secure clock and DRM component generation. A trace should retain the content KID, requested action, license-state query, acquisition callback sequence, server response category and the first lower-level DRM HRESULT.
The producing layer has not made a claim about every media operation; it has only established that a second Player rights request arrived while an acquisition transaction was already active.
Failure model
The before/after comparison has one controlled variable. Before correction, a second Player rights request arrived while an acquisition transaction was already active; after correction, the same workflow can serialize acquisitions or wait for the active transaction to complete.
What remains unknown
A second Player rights request arrived while an acquisition transaction was already active.
Confirm the condition
- Preserve it and
0xC00D1202before cleanup, fallback or another media item changes the context. - Compare the failure with a known-good case that changes only the property named by this condition: a second Player rights request arrived while an acquisition transaction was already active.
- Apply the targeted fix: serialize acquisitions or wait for the active transaction to complete.
- Associate this result with the current Windows Media Player rights-processing object and the requested action.
- Run the direct check: correlate content KIDs and acquisition operation IDs to determine whether requests were duplicated.
Compare neighboring states
| Result | Why it points elsewhere |
|---|---|
NS_E_WMP_DRM_COMPONENT_FAILURE | a DRM component failed internally after the Player had selected the protected-content path |
NS_E_WMP_DRM_NO_DEVICE_CERT | the target portable device did not provide a certificate usable for protected transfer |
NS_E_WMP_DRM_LICENSE_EXPIRED | the matching Player license is outside its permitted usage interval |
Operational response
The next attempt becomes meaningful only after you serialize acquisitions or wait for the active transaction to complete.
- Preserve the evidence before making changes. Do not reset the local DRM store before recording the content KID and license-state result; a reset can turn a precise rights or signature failure into a generic missing-license condition.
Technical references
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