My boss is looking to get anti virus for our VM environments. Currently we have XenServer and VMware.
We have Microsoft Forefront currently but he says that when he turns on real time protection, it kills the host so we cannot run it.
I've used Symantec in almost all my environments, and have never seen real time protection unable to be used. That doesn't mean I like Symantec by the way.

Do you all have an antivirus solution running real time protection in your VM environments? If so, what product and what hypervisor? And most specifically, are the VMs running Citrix?
Thanks.