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MQ_ERROR_MQIS_READONLY_MODE
What this result actually narrows down
MQ_ERROR_MQIS_READONLY_MODE means legacy MQIS write suppression. The historical information store is in a mode where updates are intentionally disabled.
A legacy code found in an event archive is evidence about the deployment generation. When diagnosing this result, copying old DLLs or registry settings into a current Windows installation can make the system less recoverable.
Establish the originating binary, operating-system build, MSMQ generation, and migration phase. If those cannot be proved, treat the code as historical context rather than a current configuration prescription.
MSMQ objects involved
| Subsystem | a legacy MSMQ 1.0/enterprise setup or compatibility path retained in mq.h |
|---|---|
| Relevant condition | the symbolic value may describe an obsolete component rather than a supported modern recovery action |
| Code-specific focus | legacy MQIS write suppression |
Compatibility names can outlive the component that once emitted them. Remediation must match the historical architecture, not only the symbolic text. The code-specific boundary is legacy MQIS write suppression.
Triage data
- Windows and msmq version where the code was captured.
- Installation or migration component name and original event text.
- Whether a current api returned the value or an old log merely contains it.
Correct response
Preserve installation/migration state and avoid treating it as an ordinary LDAP permission issue.
What this code is not
Do not copy retired DLLs or recreate obsolete registry topology until the originating MSMQ generation and component are proved. Code-specific condition: legacy MQIS write suppression.
Example failure path
When this code appears in an archived installer or migration log, identify the MSMQ version and component that produced it before applying current-version guidance or changing the installation.
Technical references
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