Homesharing between iTunes Mac and iTunes Windows 8

I recently purchased a new PC with Windows 8 and Norton 20.2.  I have a Windows 7 PC and a Macbook Pro as well.  All three are running the latest version of iTunes (11.0.1).  The Win7 PC and the Mac can see each other with Homeshare.  The Win8 PC can see neither of them.  I vaguely recall having to adjust a setting in Norton to allow home sharing, but can't recall specifically, and regardless it's probably under a different name.  Can someone please explain how I configure Norton to allow home sharing to see the other two libraries?  Yes, they are all on the same wireless network.

 

Thanks in advance for any help!

 

Cheers!

jwk