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NS_E_UNSUPPORTED_ARCHIVEOPERATION
NS_E_UNSUPPORTED_ARCHIVEOPERATION: the failing boundary
NS_E_UNSUPPORTED_ARCHIVEOPERATION (0xC00D1B78) means This archive operation is not supported. The important boundary is archive capability; do not replace this result with a broader “Windows Media failed” diagnosis.
What this result proves
This code proves that the requested archive operation is not supported in the current encoder/archive state. 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 the exact archive method, current encoder state and archive mode; perform the operation only in a supported state. 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_UNSUPPORTED_ARCHIVEOPERATION.
Technical references
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