# Thursday, August 21, 2008
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"The Microsoft Exchange Information Store service terminated with service-specific error 0 (0x0)."

AVG AntiVirus had expired which caused the Exchange AV module to fail:

"Error code -2147467259 returned from virus scanner initialization routine. Virus scanner was not loaded. " (Event ID 9581)

and

"Error 0x80004005 starting the Microsoft Exchange Information Store.

Failed to init VSERVER. " (Event ID 9564)

SOLUTION

Set "HKLM\system\Currentcontrolset\services\MsexchangeIS\Virusscan" to "0" and start service.  Renew AV subscription