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NS_E_DUPLICATE_DRMPROFILE
Interpret the security decision
At 0xC00D1B90, NS_E_DUPLICATE_DRMPROFILE records that a new encoder DRM profile reuses an identifier already present in the profile store. For NS_E_DUPLICATE_DRMPROFILE, the owner is Windows Media Encoder DRM profiles; its working contract covers encoder-session configuration that selects a stored DRM profile and uses its identifier, policy and secret while packaging live or file-based protected output.
To prove this boundary rather than infer it from a dialog, enumerate stored profile IDs and compare the exact normalized identifier. The standard AllStat text is already shown above; this custom section concentrates on the object state and the evidence needed to separate NS_E_DUPLICATE_DRMPROFILE from neighboring Windows Media errors.
Do not lose object identity
The object graph behind NS_E_DUPLICATE_DRMPROFILE includes encoding session, DRM profile identifier, profile store, password, selected audience/output and profile-count limit. A NS_E_DUPLICATE_DRMPROFILE trace should retain the profile ID supplied to the session, profile enumeration result, profile-store location, password length and the point at which the encoder binds the profile.
The scope stays narrow: a new encoder DRM profile reuses an identifier already present in the profile store. Other content or actions may still be valid.
How the operation should advance
A useful failure model for NS_E_DUPLICATE_DRMPROFILE links cause and recovery: a new encoder DRM profile reuses an identifier already present in the profile store. Verify that model when you enumerate stored profile IDs and compare the exact normalized identifier, then make the smallest change needed to choose a unique profile ID or deliberately update the existing profile. The NS_E_DUPLICATE_DRMPROFILE model is suitable for a regression fixture because its expected state change is observable without weakening the DRM policy.
Values to compare
| Field | Value for NS_E_DUPLICATE_DRMPROFILE |
|---|---|
| Policy input | requested action plus the exact license, certificate, profile, output or registration property evaluated by NS_E_DUPLICATE_DRMPROFILE |
| Temporal state | trusted/system time, validity interval, request sequence and retry number when they influence NS_E_DUPLICATE_DRMPROFILE |
| Lower result | the earliest store, network, cryptographic, driver or provider status preceding the final NS_E_DUPLICATE_DRMPROFILE wrapper |
| Owner | operation, API/callback, object or session identifier, and component/device version associated with NS_E_DUPLICATE_DRMPROFILE |
| Direct check | enumerate stored profile IDs and compare the exact normalized identifier |
Distinguish from nearby results
| Result | Why it points elsewhere |
|---|---|
NS_E_DRM_PROFILE_NOT_SET | the encoder session reached protected output without a DRM profile bound to it |
NS_E_DRM_PASSWORD_TOO_LONG | the supplied legacy DRM profile password exceeds the accepted field length |
NS_E_DRMPROFILE_NOTFOUND | the encoder cannot resolve the requested DRM profile identifier |
Keep the scope narrow
For NS_E_DUPLICATE_DRMPROFILE, the established fact is that a new encoder DRM profile reuses an identifier already present in the profile store. For NS_E_DUPLICATE_DRMPROFILE, 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 NS_E_DUPLICATE_DRMPROFILE as the first specific result. The object and operation attached to NS_E_DUPLICATE_DRMPROFILE are usually more diagnostic than a later cleanup or user-interface summary.
From HRESULT to cause
- Preserve
NS_E_DUPLICATE_DRMPROFILEand0xC00D1B90before cleanup, fallback or another media item changes the context. - Apply the narrow correction for
NS_E_DUPLICATE_DRMPROFILE: choose a unique profile ID or deliberately update the existing profile. - Associate
NS_E_DUPLICATE_DRMPROFILEwith its current Windows Media Encoder DRM profiles object and the requested action. - Run the direct check for
NS_E_DUPLICATE_DRMPROFILE: enumerate stored profile IDs and compare the exact normalized identifier. - Compare the failure with a known-good case that changes only the property named by this condition: a new encoder DRM profile reuses an identifier already present in the profile store.
- Repeat the same action with the same content/device identity and verify that
NS_E_DUPLICATE_DRMPROFILEis not replaced by another policy or trust failure.
Fix and verify
Correct this layer directly and choose a unique profile ID or deliberately update the existing profile. For NS_E_DUPLICATE_DRMPROFILE, success means that the same requested action is accepted after that precise state change, not merely that another file or device happens to work.
- Evidence for
NS_E_DUPLICATE_DRMPROFILEis easy to destroy; Do not recreate every encoder profile at once; preserve the original profile ID and compare one known-good profile so a lookup problem is not confused with a policy or password problem. - Do not alter trusted time, revocation enforcement, certificate validation or output policy merely to suppress
NS_E_DUPLICATE_DRMPROFILE; that bypasses the decision instead of correcting its input. - Retain one failing artifact and one corrected artifact so the resolution of
NS_E_DUPLICATE_DRMPROFILEcan be regression-tested.
Completion criterion
For the final NS_E_DUPLICATE_DRMPROFILE test, keep the content KID or file hash, requested action, user/account, device identity and output route unchanged wherever they apply. The NS_E_DUPLICATE_DRMPROFILE case is resolved only when the operation completes without this HRESULT and without a substitute failure from a neighboring license, trust, session or policy check.
Technical references for NS_E_DUPLICATE_DRMPROFILE
- Live DRM — documents the protocol or API boundary behind NS_E_DUPLICATE_DRMPROFILE.
- DRM protection and license distribution — provides the normative workflow relevant to NS_E_DUPLICATE_DRMPROFILE.
- Windows Media DRM overview — lists the security and state transitions used to interpret NS_E_DUPLICATE_DRMPROFILE.
- Windows Media Format SDK error codes — defines the platform objects used when diagnosing NS_E_DUPLICATE_DRMPROFILE.
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