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The ability to group RDSH servers into collections was new to Windows Server 2012 RDS the feature is useful for load balancing connections between connected servers. Multiple RDSH servers can be grouped together in a Session Collection and publish either Azure applications or session-based desktops, but not both from the same collection. Multiple end users can connect to the RDSH server through a remote desktop connection broker or Microsoft Azure to access session-based desktops, published applications and server resources. The benefits of delivering Windows desktops or applications through RDSH instead of installing apps on employees' devices include quicker update rollouts and the ability for end users to access corporate apps and desktops remotely, using devices that wouldn't normally support those apps or Windows. This can become useful in organizations that need to help employees install a needed application while working remotely, for example. RDSH can be used for numerous reasons, such as for installing applications on a desktop in a remote location. To access applications or desktops remotely, users need to be on a network connection. Users can access this through a web client on a supported browser or through a Remote Desktop client, which runs on Windows, macOS, iOS and Android devices. RDSH can host Windows session-based applications and desktops that can be shared with users remotely.
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Remote Desktop Session Host (RDSH) is a role in Remote Desktop Services ( RDS).
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