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NS_E_WMP_DRM_GENERIC_LICENSE_FAILURE
Locate the failing contract
NS_E_WMP_DRM_GENERIC_LICENSE_FAILURE is the result to preserve when the Player wrapper could not reduce a rights-validation failure to a more specific public result. The owner is Windows Media Player rights processing; its working contract covers 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.
The strongest confirmation is to preserve the earlier lower-level DRM callback and license-state query that preceded this wrapper code.
A defensible test
- Preserve this result and
0xC00D11DAbefore cleanup, fallback or another media item changes the context. - Associate this result with its current Windows Media Player rights processing object and the requested action.
- Run the direct check for this HRESULT: preserve the earlier lower-level DRM callback and license-state query that preceded this wrapper code.
- Compare the failure with a known-good case that changes only the property named by this condition: the Player wrapper could not reduce a rights-validation failure to a more specific public result.
- Apply the narrow correction for this HRESULT: repair the producing license, trust or acquisition condition identified by the earlier result.
- Repeat the same action with the same content/device identity and verify that this result is not replaced by another policy or trust failure.
Evidence from one operation
Do not separate it from its owning state: content KID and header, license-store entry, requested action, acquisition URL, user/store context, secure clock and DRM component generation. The diagnostic record for this HRESULT is the content KID, requested action, license-state query, acquisition callback sequence, server response category and the first lower-level DRM HRESULT.
This evidence matters because the rejected condition is specifically that the Player wrapper could not reduce a rights-validation failure to a more specific public result.
Model the rejected precondition
When documenting it, state the rejected input and the expected successor state. The rejected input is demonstrated when you preserve the earlier lower-level DRM callback and license-state query that preceded this wrapper code; the successor becomes reachable after you repair the producing license, trust or acquisition condition identified by the earlier result. The result model is suitable for a regression fixture because its expected state change is observable without weakening the DRM policy.
One-attempt evidence
| Field | Value |
|---|---|
| Direct check | preserve the earlier lower-level DRM callback and license-state query that preceded this wrapper code |
| Policy input | requested action plus the exact license, certificate, profile, output or registration property evaluated by it |
| Temporal state | trusted/system time, validity interval, request sequence and retry number when they influence it |
| Lower result | the earliest store, network, cryptographic, driver or provider status preceding the final it wrapper |
| Owner | operation, API/callback, object or session identifier, and component/device version associated with it |
Other boundaries in the same family
| Result | Why it points elsewhere |
|---|---|
NS_E_WMP_DRM_INVALID_SIG | a required DRM component or protected object fails signature validation in the Player path |
NS_E_WMP_DRM_CANNOT_RESTORE | the Player restore service rejected another restore within its rate or policy limit |
NS_E_WMP_DRM_NO_SECURE_CLOCK | a device-dependent license requires trusted time but the target device has no usable secure clock state |
Avoid a false conclusion
The established fact is that the Player wrapper could not reduce a rights-validation failure to a more specific public result. That fact does not independently establish damaged media bytes, a missing decoder, a generally broken network, or invalid rights for every other action.
If the Player, encoder, setup program or device layer later emits a broader error, retain it as the first specific result. The object and operation attached to it are usually more diagnostic than a later cleanup or user-interface summary.
Resolution test
Correct this layer directly and repair the producing license, trust or acquisition condition identified by the earlier result. Success means that the same requested action is accepted after that precise state change, not merely that another file or device happens to work.
- It: 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.
- Do not alter trusted time, revocation enforcement, certificate validation or output policy merely to suppress it; that bypasses the decision instead of correcting its input.
- Retain one failing artifact and one corrected artifact so the resolution of it can be regression-tested.
Verify without changing the question
For the final it test, keep the content KID or file hash, requested action, user/account, device identity and output route unchanged wherever they apply.
Technical references
- Windows Media DRM overview — defines the platform objects used when diagnosing it.
- Acquiring licenses — documents the protocol or API boundary behind it.
- Licenses and the local license store — provides the normative workflow relevant to it.
- Windows Media Format SDK error codes — lists the security and state transitions used to interpret it.
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