Today I installed a new Anti-Virus product on my Exchange Servers, ESET.
The nice thing with ESET is that it automatically sets exclusions as it detects what is installed, so on my servers Exchange, IIS and Windows Server exclusions were set.
However, Microsoft recommends the following to be set on the exclusion list:
http://technet.microsoft.com/en-us/library/bb332342.aspx
