What does HRESULT 0xC00E0038 (MQ_ERROR_ILLEGAL_MQCOLUMNS) mean?

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Description:

The MQCOLUMNS parameter is invalid.

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MQ_ERROR_COULD_NOT_GET_ACCOUNT_INFO	MQ_ERROR_ILLEGAL_PROPID

MQ_ERROR_ILLEGAL_MQCOLUMNS

Diagnosing MQ_ERROR_ILLEGAL_MQCOLUMNS

The result MQ_ERROR_ILLEGAL_MQCOLUMNS means the MSMQ column set for a query/enumeration is invalid.

Reproduce the same boundary

capture MQCOLUMNSET count and property IDs, query type, object class, and array lifetimes.
Preserve the first lower-level status, request ID, or object generation before retry/cleanup changes it.

build a valid nonconflicting column set for that enumeration and verify each column has the expected type. A new HRESULT afterward is evidence that execution crossed this boundary.

Technical references

MSMQ error codes.
Message Queuing.

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