Antivirus software exclusions for DFS and Hyper-V

I am rolling out an updated antivirus solution to our DFS server and Hyper-V (Windows 2008 and 2012) and I am curious of the following:

1. What are the exclusion suggestions for Hyper-V servers?  I found a URL that showed the exceptions to add but I thought there would be more for Hyper-V to exclude.

2. What are the specific exclusions to include for a DFS server?  I read somewhere that there were some DFSR hidden folders that need to be included but I would like to know if there is an official suggestion from Microsoft of what files/folders need to be excluded.