HRESULT 0xC00D27DD (NS_E_DRM_LICENSE_APP

Status / error code:

Category:

Constant name:

Source:

Facility:

Operating System:

Description:

The license for this file requires an upgraded version of your player or a different player.%0.

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NS_E_DRM_STORE_NOTALLOWED	NS_E_DRM_LICENSE_CERT_EXPIRED

NS_E_DRM_LICENSE_APP_NOTALLOWED

The failing WMDRM boundary

0xC00D27DD maps to NS_E_DRM_LICENSE_APP_NOTALLOWED. Read it as a result from license validity, rights and policy enforcement: the license does not permit use by the current player application. Keeping the “license app notallowed” boundary intact for NS_E_DRM_LICENSE_APP_NOTALLOWED prevents a later playback message from hiding the original DRM failure, during license app notallowed diagnosis.

For NS_E_DRM_LICENSE_APP_NOTALLOWED, the built-in message summarizes the user-visible outcome, while the symbolic phrase “license app notallowed” preserves the exact WMDRM boundary for diagnosis. For this code, the proof step is to record application certificate/identity and license application restriction, in a license app notallowed incident.

Place in the DRM workflow

The workflow around NS_E_DRM_LICENSE_APP_NOTALLOWED matters: possessing a license does not imply that every operation is permitted; rights and restrictions are evaluated for the requested action, for this license app notallowed result. In addition, the same content can have several licenses, so diagnostics must identify the license actually selected by the DRM component, when reproducing license app notallowed.

State to capture before retry

Capture the first NS_E_DRM_LICENSE_APP_NOTALLOWED occurrence before automatic retry, player teardown, store repair or license reacquisition changes the state, within the license app notallowed workflow. The smallest useful record contains:

Code-specific proof: record application certificate/identity and license application restriction, in the license app notallowed path.
Protected identity: requested action such as play, copy, burn or transfer, while tracing license app notallowed.
Operation state: license ID, KID and content-header identity, for the license app notallowed boundary.
Persistence or transport: valid-from, expiration and secure-clock values, during license app notallowed diagnosis.
Security context: application security level and required output protection, in a license app notallowed incident.
Correlation point: remaining counts, device registration and revocation state, for this license app notallowed result.

For the “license app notallowed” investigation, use KIDs, license IDs, hashes, certificate thumbprints, sizes and timestamps where possible. While diagnosing NS_E_DRM_LICENSE_APP_NOTALLOWED, do not place content keys, complete license blobs, passwords, cookies or decrypted media in ordinary logs, when reproducing license app notallowed.

A useful investigation order

Locate the earliest API return, callback or event containing NS_E_DRM_LICENSE_APP_NOTALLOWED and 0xC00D27DD.
For NS_E_DRM_LICENSE_APP_NOTALLOWED, identify the exact content, license, store, device or migration object generation involved in “license app notallowed”.
For NS_E_DRM_LICENSE_APP_NOTALLOWED, determine whether “license app notallowed” occurred before network exchange, during response validation, while enforcing policy, or while committing protected state.
Perform the code-specific check: record application certificate/identity and license application restriction, within the license app notallowed workflow.
Make one narrow correction — use an authorized compatible application or obtain a suitable license — and repeat the same producing operation, in the license app notallowed path.

Narrow remediation

For NS_E_DRM_LICENSE_APP_NOTALLOWED, the corrective direction is to use an authorized compatible application or obtain a suitable license, while tracing license app notallowed. Preserve the original content/header, store or migration material for NS_E_DRM_LICENSE_APP_NOTALLOWED until the “license app notallowed” operation succeeds and survives a fresh application object or required restart.

Representative case: A store-issued license is bound to a different approved player, for the license app notallowed boundary.

What not to do first

Avoid changing the system clock or bypassing output protection to make a time- or security-bound license appear valid, during license app notallowed diagnosis. That changes evidence without demonstrating why NS_E_DRM_LICENSE_APP_NOTALLOWED was produced.
Avoid treating every policy denial as damaged media or a missing codec, in a license app notallowed incident. For NS_E_DRM_LICENSE_APP_NOTALLOWED, that shortcut can create a second store, identity or policy problem, for this license app notallowed result.
Do not reduce NS_E_DRM_LICENSE_APP_NOTALLOWED to “DRM failed” in telemetry; retain the HRESULT, symbolic name, operation and object identity, when reproducing license app notallowed.

Nearby results with different meanings

Result	Different boundary
`NS_E_DRM_STORE_NOTALLOWED`	Current machine or policy state does not permit this license to be stored, within the license app notallowed workflow.
`NS_E_DRM_STORE_NEEDINDI`	The license cannot be stored until the DRM client is individualized to the required level, in the license app notallowed path.
`NS_E_DRM_LICENSE_APPSECLOW`	The player application security level is below the license requirement, while tracing license app notallowed.

Several values can accompany the “license app notallowed” condition in one incident. Order the NS_E_DRM_LICENSE_APP_NOTALLOWED event chain by timestamp and prefer the first code produced at the lowest specific boundary over a later player-level summary, for the license app notallowed boundary.

Verification after correction

After the repair, recreate the WMDRM object and run the smallest reproducer for NS_E_DRM_LICENSE_APP_NOTALLOWED. Confirm that 0xC00D27DD no longer occurs, that the intended license action completes, and that no store, certificate, clock or migration warning replaces it, during license app notallowed diagnosis.

Code-specific operational note

The symbolic phrase “license app notallowed” is the important search and telemetry key for NS_E_DRM_LICENSE_APP_NOTALLOWED. Keep it beside the exact value 0xC00D27DD; the official message “The license for this file requires an upgraded version of your player or a different player, in a license app notallowed incident..” is useful to users, but it does not identify the producing API, object generation or protected identity on its own, for this license app notallowed result.

Technical references

DRM basics and rights enforcement — API and state rules relevant to this NS_E_DRM_LICENSE_APP_NOTALLOWED boundary.
Licenses and the local license store — platform documentation used to distinguish NS_E_DRM_LICENSE_APP_NOTALLOWED from adjacent results.
Output protection levels — official Windows Media DRM context for NS_E_DRM_LICENSE_APP_NOTALLOWED.
DRM protection and license distribution — API and state rules relevant to this NS_E_DRM_LICENSE_APP_NOTALLOWED boundary.

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