Symptoms
This issue occurs only when a delegate tries to decline a meeting request in a Microsoft Exchange Server 2010 environment, and then a crash happens in a Microsoft Exchange ActiveSync application pool.
Cause
The issue occurs because of a by design logic in an Exchange Server 2010 environment.
Resolution
To resolve this issue, install Update Rollup 10 for Exchange Server 2010 Service Pack 3.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
