Download information for Microsoft Exchange Server MAPI Client and Collaboration Data Objects 1.2.1.
http://www.microsoft.com/downloads/details.aspx?FamilyID=e17e7f31-079a-43a9-bff2-0a110307611e&displaylang=en
Updated version is 6.5.8069.0
The updated version contains a fix for a security issue which has been assigned a severity rating of critical. More information about the issue can be found in the Microsoft Security Bulletin:
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