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NS_E_DRM_LICENSE_EXPIRED
NS_E_DRM_LICENSE_EXPIRED: the failing boundary
NS_E_DRM_LICENSE_EXPIRED (0xC00D27D8) means The license for this file has expired and is no longer valid. Contact your content provider for further assistance. The important boundary is DRM license validity; do not replace this result with a broader “Windows Media failed” diagnosis.
What this result proves
This code proves that the selected license is past its permitted validity period. It does not, by itself, prove a codec, permissions, network, device, or media problem outside that boundary. Preserve the first lower-level result when one exists, because later Player or Encoder errors can hide the original cause.
Evidence and focused verification
Record license/kid identity and secure-clock comparison with expiration; renew or reacquire rights rather than changing system time. Keep the media object, endpoint, profile, or device identity fixed while changing only that rejected precondition. A successful retest should pass this exact boundary; a different HRESULT from a later stage is new evidence, not recurrence of NS_E_DRM_LICENSE_EXPIRED.
Technical references
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