The server is fully updated and I'm following the pre-requisites KB > http://technet.microsoft.com/en-us/library/bb691354%28EXCHG. Microsoft Learn
If you already ran it:
This update is applicable only to systems running: windows update kb2533 64 bit full
It prevents applications from insecurely loading external DLL libraries, a common vector for malware. Modern Compatibility: The server is fully updated and I'm following