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MQ_ERROR_CANNOT_LOAD_MQAD
MQ_ERROR_CANNOT_LOAD_MQAD: MSMQ could not load Mqad.dll for Active Directory integration
MQ_ERROR_CANNOT_LOAD_MQAD (0xC00E0085) identifies a specific boundary: MSMQ could not load Mqad.dll for Active Directory integration. Keep it separate from neighboring errors that may occur in the same product but represent a different lookup, state, trust, or transport decision.
Evidence to capture
Record the process architecture, resolved DLL path, file version/signature, loader error, MSMQ installation state, and calling component. This is a local component-load failure before any LDAP query is meaningful.
Corrective test
Repair the matching MSMQ installation/component and verify the same process can load Mqad.dll from the expected system path; avoid copying a DLL from another Windows build. Preserve the original identifiers while testing; if another HRESULT appears after this boundary is fixed, treat that value as the next-stage result.
Technical references
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