I don't see an option for "network shares". when I add source I have my local drive, HDHomerun devices, Home folder, replay TV Devices, SAP Stream, and UPnP Devices. I was using UPnP Devices that then offers my the Windows Media Connect option.
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Mobile | 2011 15" MacBook Pro | 16GB DDR3 1600MHz | 256GB Vertex 3 | HD6750M | High-Res Anti-Glare | 27" Apple Thunderbolt Display
Home Automation | Crestron Prodigy |