The No MulticastSubnet Architecture is shown in Figure 10.
Figure 10 – The No MulticastSubnet Architecture
In this architecture the mDNS is not used at all because the Administrator has disabled multicast at a network level or by turning off multicast capabilities of each LDS-ME.
A Client that wants to discover a applications needs to use an out of band mechanism to find the HostName and call FindServers on the LDS of that host. FindServersOnNetwork may also work but it will never return more than what FindServers returns.