Support Windows 10 mdns responder
Windows 10 ships with its own mDNS responder. This should be supported, since trying to have two running at once just plain doesn't work.
Microsoft only seems to have documentation for UWP apps: https://docs.microsoft.com/en-us/uwp/api/Windows.Networking.ServiceDiscovery.Dnssd
but at least one person's managed to wrap it for traditional Win32: https://github.com/stammen/dnssd-uwp