What does HRESULT 0xC00D28B2 (NS_E_DRM_ATTRIBUTE_TOO_LONG) mean?

Status / error code:

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Constant name:

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Description:

The length of the attribute name or value is too long.%0

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NS_E_DRM_INVALID_CRL	NS_E_DRM_EXPIRED_LICENSEBLOB

NS_E_DRM_ATTRIBUTE_TOO_LONG

The state behind the HRESULT

NS_E_DRM_ATTRIBUTE_TOO_LONG belongs to the point where a WMDRM-ND attribute name or value exceeds the protocol/API limit. The owner is WMDRM for Network Devices; its working contract covers the transmitter/receiver protocol that registers a network playback device, approves it, validates proximity, opens a protected session and transcrypts licensed content for that receiver.

Before changing the machine, record attribute identifier and encoded byte length before serialization.

State table

Field	Value
Policy input	requested action plus the exact license, certificate, profile, output or registration property evaluated by this result
Temporal state	trusted/system time, validity interval, request sequence and retry number when they influence this result
Direct check	record attribute identifier and encoded byte length before serialization

Build a useful incident record

A complete incident ties together device certificate and serial number, registration-database entry, approval flag, validation timestamp, network session, protocol message and transcrypt policy; the minimum correlation set is the exact WMDRM-ND message type, device identifier, certificate chain, registration state, round-trip timing and the first protocol HRESULT.

That observation distinguishes it from file corruption because a WMDRM-ND attribute name or value exceeds the protocol/API limit.

Reconstruct the decision

When documenting it, state the rejected input and the expected successor state. The rejected input is demonstrated when you record attribute identifier and encoded byte length before serialization; the successor becomes reachable after you shorten or correctly encode that attribute within the supported limit. The result model is suitable for a regression fixture because its expected state change is observable without weakening the DRM policy.

Interpretation limits

A WMDRM-ND attribute name or value exceeds the protocol/API limit.

Focused verification

Preserve it and 0xC00D28B2 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: a WMDRM-ND attribute name or value exceeds the protocol/API limit.
Apply the targeted fix: shorten or correctly encode that attribute within the supported limit.
Associate it with its current WMDRM for Network Devices object and the requested action.
Run the direct check: record attribute identifier and encoded byte length before serialization.

Neighboring security decisions

Result	Why it points elsewhere
`NS_E_DRM_BAD_REQUEST`	a WMDRM-ND request has invalid framing, fields or message semantics
`NS_E_DRM_INVALID_CRL`	the certificate revocation list used by WMDRM-ND is malformed, corrupt or unverifiable
`NS_E_DRM_EXPIRED_LICENSEBLOB`	the license blob carried in the Cardea request has passed its validity interval

Repair criterion

The next attempt becomes meaningful only after you shorten or correctly encode that attribute within the supported limit.

Technical references

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