HRESULT 0xC00D280A (NS_E_DRM_LICENSE_NOSAP): meaning and diagnosis

Status / error code:

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Description:

The license for this file requires a feature that is not supported in your current player or operating system. You can try with newer version of your current player or contact your content provider for further assistance.%0

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NS_E_DRM_DEVICE_NOT_REGISTERED	NS_E_DRM_LICENSE_NOSVP

NS_E_DRM_LICENSE_NOSAP

What this result actually narrows

Treat 0xC00D280A as a state report from NS_E_DRM_LICENSE_NOSAP: the license requires Secure Audio Path capability that the active client cannot supply. The subsystem producing this result is Windows Media DRM client internals, not the media decoder; it performs the client DRM engine that initializes security components, validates content and license identifiers, performs individualization, manages license chains and coordinates protected playback capabilities.

The investigation becomes concrete when you compare license output requirements with the audio driver and client security level.

Inputs to the decision

Do not separate this result from its owning state: DRM component version, KID, content header signature, license chain, uplink license, individualization state, portable-device registrations and local configuration. The diagnostic record is the KID and header hash, DRM component version, individualization status, license-chain identifiers, registry/configuration lookup and the first client callback reporting failure.

That observation distinguishes this result from file corruption because the license requires Secure Audio Path capability that the active client cannot supply.

From evidence to correction

The transition that returns it begins with compare license output requirements with the audio driver and client security level. If that observation matches, the next state cannot be reached until the implementation can use a trusted compatible playback path or obtain a less restrictive license. Keeping the result transition intact also shows whether a retry reused stale state or actually reevaluated the corrected input.

A useful support bundle

Field	Value
Direct check	compare license output requirements with the audio driver and client security level

Validate one precondition

Preserve it and 0xC00D280A before 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: the license requires Secure Audio Path capability that the active client cannot supply.
Apply the targeted fix: use a trusted compatible playback path or obtain a less restrictive license.
Associate it with its current Windows Media DRM client internals object and the requested action.
Run the direct check: compare license output requirements with the audio driver and client security level.

Conditions excluded by this code

The license requires Secure Audio Path capability that the active client cannot supply.

Useful comparisons

Result	Why it points elsewhere
`NS_E_DRM_LICENSE_NOSVP`	the license requires a Secure Video Path capability unavailable in the selected environment
`NS_E_DRM_LICENSE_NOWDM`	the protected audio license requires WDM audio drivers, but the active path is not WDM-capable
`NS_E_DRM_LICENSE_NOTRUSTEDCODEC`	the codec selected for protected content does not meet the license trust requirement

Corrective action

Repair the owner of the check: use a trusted compatible playback path or obtain a less restrictive license.

Technical references

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