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NS_E_DRM_UNABLE_TO_CREATE_DECRYPT_OBJECT
How to classify this result
The symbolic result NS_E_DRM_UNABLE_TO_CREATE_DECRYPT_OBJECT narrows 0xC00D2733 to protected content header, keys and cryptographic processing. In practical terms, the DRM runtime cannot create the decryption object required for this operation; the producing layer is the path that parses the DRM header, selects a KID and algorithm, validates signed data, creates cryptographic objects and encrypts or decrypts protected media samples.
Diagnostic discriminator: Microsoft describes this condition as “A problem has occurred in the Digital Rights Management component. Contact Microsoft product support.%0.” Use that exact state to separate the value from nearby results in the same subsystem.
How to prove the condition
- Locate the earliest API return, callback or event containing this result and
0xC00D2733. - Identify the exact content, license, store, device or migration object instance involved in “unable to create decrypt object”.
- Determine whether “unable to create decrypt object” occurred before network exchange, during response validation, while enforcing policy, or while committing protected state.
- Perform the code-specific check: record the factory/interface call, runtime and stub-library versions, outer object state and first inner HRESULT.
- Make one targeted change — correct component/version or initialization state and create a fresh decryption object — and repeat the same producing operation.
Which component owns the failure
Do not flatten this result into a generic DRM error. A malformed content header, an invalid license XML document and a decryption failure occur at different boundaries and require different replacement artifacts. The second relevant rule is that protected content should be identified by hashes and KIDs in support records; content keys and complete license blobs should not be exposed.
Diagnostic inputs that separate the causes
- Code-specific proof: record the factory/interface call, runtime and stub-library versions, outer object state and first inner HRESULT.
- Protected identity: KID, license ID and key-selection result.
- Operation state: algorithm, key length and coding object type.
- Persistence or transport: signature or certificate validation status.
- Security context: first failing sample offset rather than only the player-level message.
- Correlation point: ASF/DRM header bytes and declared version.
What a supported fix should change
To correct this, correct component/version or initialization state and create a fresh decryption object. Preserve the original content/header, store or migration material until the operation succeeds and survives a fresh application object or required restart.
Representative case: The application reaches the decryption stage but object construction fails before any content or server work begins.
Do not merge these HRESULTs
| Result | Different condition |
|---|---|
NS_E_DRM_UNABLE_TO_CREATE_ENCRYPT_OBJECT | The DRM runtime cannot create the encryption object required for this operation. |
NS_E_DRM_GET_CONTENTSTRING_ERROR | The client cannot obtain the DRM content string/header data from the media object. |
NS_E_DRM_LICENSE_INVALID_XML | The license is corrupted. Acquire a new license in the Windows Media DRM client |
How to know the fix is real
After the repair, recreate the WMDRM object and run the smallest reproducer. Confirm that 0xC00D2733 no longer occurs, that the intended license action completes, and that no store, certificate, clock or migration warning replaces it.
What the missing object would have owned
The decryption object normally uses an accepted license and key to transform protected samples for the trusted playback path. Object creation fails before that responsibility can be transferred to a live interface, so later player or server messages are secondary.
For this object specifically, preserve the selected license, KID, sample offset and protected-path state. A successful fix should create a new decryption object and then complete its first real operation, not merely make the factory call return a different generic error.
Technical references
- Overview of Windows Media DRM.
- DRM protection and license distribution — platform documentation used to distinguish this result from adjacent results.
- DRM versions.
- Windows Media DRM error codes
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