| Event Id | 16 |
| Source | MSExchangeES |
| Description | Unexpected error 0x800401f0 occurred during processing of timer-based events. |
| Event Information | CAUSE: Changes were made in Exchange Server 5.5 SP2 to allow Cdo.dll to properly support the Component Object Model (COM) Multi-Threaded Apartment (MTA) model. The Microsoft Event Service exposed a problem with these changes. RESOLUTION: To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. |
| Reference Links | Event Scripts Fail with Error 0x800401f0 (CO_E_NOTINITIALIZED) after Installing Exchange 5.5 SP2 |
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