By default, in 2012(R2), it is not possible to use the same RDS Host Server to publish both RemoteApps and full remote desktops. This is because a RDS server can only be part of one and only one Session Collection, and a Session Collection can only either publish remote desktops or RemoteApps.

But there is an "unofficial and very unsupported" workaround which allows you to publish the full desktop in addition to the RemoteApps from the same Collection. This can be achieved by manually toggle publishing through the registry on the server running the RD Broker/Gateway.

Using regedit, navigate to the key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Serve  ...

When running some RemoteApp, published from a Windows 2008R2, you may sometimes experience that the application does not start properly. In the startup window, when clicking on the Details button, you see a black window and no contents at all. The problem mainly occurs when working via internet, via a wireless network, or some other slower-than-normal link. Additionally, when your session is logged off on the RDS server, you will be able to start the RemoteApp once; subsequently restarting the application results in the above specified behaviour.

The issue is caused by the Remote Desktop Session Host display driver on the RDS server. During the initial connection, the monitor layout packe  ...