Error initializing session for virtual machine %1. The error number is %2. Make sure Microsoft Exchange Store is running.

Details
Product: Exchange
Event ID: 8197
Source: MSExchangeFBPublish
Version: 6.5.0000.0
Message: Error initializing session for virtual machine %1. The error number is %2. Make sure Microsoft Exchange Store is running.
   
Explanation
Free/Busy Publishing has encountered errors attempting to log on to the Private or Public Information Stores.

Transient occurrences of this event are not a problem, but if it is recurring every 25-30 minutes, then Free/Busy Publishing is down for all Outlook Web Access users.

This event may also be generated if relevant services have recently been cycled or re-started.

   
User Action
This event can be caused by a wide variety of underlying problems, including problems with the associated MAPI profiles.

Investigate further for other alerts and events which may be related.

Often the most expedient solution is to cycle the System Attendant service.

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