| Event Id | 1142 |
| Source | MSExchangeSRS |
| Description | The auxiliary schema class identifier <value> (class name <object type>) derives from structural schema class identifier <value> (class name <object type>). This error was ignored and the inheritance was processed anyway. |
| Event Information | The schema was modified. Auxiliary classes are not used by the Microsoft Exchange Server directory schema. Stop and restart the Site Replication Service. If the error persists, restore the directory database from a backup, or contact Microsoft Product Support Services. |
| Reference Links | Microsoft product: Exchange Version: 6.0 Event Source: MSExchangeSRS Event ID: 1142 |
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