One of our users reported a virus warning on jmsoutlookaddrbook.dll (current rev. 8309). Looking at it with VirusTotal  indicates that it is most probably a false positive. I'm not sure if you can do anything about that because it's the heuristics that kick in - very likely on the involved MAPI code. But as some very popular products like AntiVir are part of the alerters it should still be worth to take a look.