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COMADMIN_E_OBJECTEXISTS
COMADMIN_E_OBJECTEXISTS is the failure HRESULT 0x80110438 (signed decimal -2146368456, unsigned decimal 2148598840). Its severity bit is 1, facility is 17 (FACILITY_ITF), and the facility-specific code field is 0x0438.
COM+ catalog object and collection state: exact meaning of COMADMIN_E_OBJECTEXISTS
An object with the requested identity already exists in the target collection. Add or rename work reaches uniqueness validation for a catalog collection.
AllStat records this condition as “The object you are attempting to add or rename already exists”.
Where the result occurs
The authoritative state is the logical COM+ catalog exposed through COMAdmin collections, not a single registry key or an old in-memory object. In the specific case of this result, record collection name, proposed key/name, existing object key, and normalization rules.
Evidence to collect before repair
- Collect collection name, parent key, object key, and application/partition ID when diagnosing this result; without it the symbolic HRESULT is underdetermined.
- The result investigation needs the exact administration method and pending property values so the exact failing boundary remains reconstructable.
- preserve ErrorInfo entries and COM+ System Application events; it anchors the failure to the real administration object.
- Evidence for it should include a fresh Populate result taken before any repair, captured before a repair changes state.
Diagnostic sequence
- The next this result diagnostic action is to recreate the catalog session and repopulate the relevant hierarchy.
- To isolate it, resolve objects by stable identifiers rather than display names.
- compare pending values with collection property metadata.
- At the boundary, save the smallest coherent change set and inspect ErrorInfo.
- The next it diagnostic action is to verify the committed object by repopulating after SaveChanges.
Practical administration scenario
A deployment renames a role to a name already used by another role in the same application.
Retry and recovery
Update the intended existing object or choose a deliberate unique identity; avoid suffix-based duplication.
Difference from nearby COMADMIN results
COMADMIN_E_APPLICATIONEXISTS and COMADMIN_E_COMPONENTEXISTS are narrower application/component variants.
Official Microsoft references
- Microsoft: COMADMIN error codes
- Microsoft: the COM+ catalog
- Microsoft: COM+ administration collections
- Microsoft: ICatalogCollection::SaveChanges
- Microsoft: COM+ administration catalog example
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