Vmware - Vcenter 5.X/6.X Antivirus exclusions

VMware vCenter Server 4.x and above is not able to send an email after an alarm has been triggered (2021458)

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2021458

Considerations for installing anti-virus software on VMware vCenter Server (2062805)

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2062805

Summarizing here they are exclusions on Windows 200X/2012 Server vCenter server:

C:\ProgramData\Vmware

And process vpxd.exe if it stops to send emails.