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CRYPT_E_NO_VERIFY_USAGE_DLL
No installed or registered function was available to verify the requested certificate subject usage. This affects policy validation rather than the basic ability to parse the certificate.
What to check for CRYPT_E_NO_VERIFY_USAGE_DLL
- Identify the usage or policy check requested by the application.
- Verify that the deployment includes the supported verification component for that certificate type and policy.
- Do not bypass EKU or usage validation without understanding why the verifier is unavailable.
Microsoft: CertVerifyCertificateChainPolicy
Microsoft: CertGetCertificateChain
Diagnostic interpretation
CRYPT_E_NO_VERIFY_USAGE_DLL has the HRESULT value 0x80092027. AllStat records the condition as “No DLL or exported function was found to verify subject usage.”.
Evidence to capture
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions this result or the crypt / verify / usage / dll operation.
- compare the failing machine with a working one at the same configuration boundary: component version, policy, registration, identity, and target resource.
Retry and recovery
” has changed.
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