I'm sorry but that's a little misleading, only the Intel i210 fully supports it others are partial. Windows works differently from OSX. Apple makes the hardware and so provides the drivers. Microsoft mainly doesn't provide the hardware so it's up to the 3rd parties to make the drivers. I did find this for that Intel chipset.
Intel AVB i210 driver
As far as I'm aware the Windows driver for Motu AVB boxes doesn't include AVB just ASIO via USB. If they have changed this please point me in the right direction as this would be huge!