Server 2019
Is there a way to prevent a user from opening multiple instances of a RemoteApp? I already have the GPO set to "Restrict Remote Desktop users to a single Remote Desktop Services session", but that is an entirely different question of whether they can open multiple instances of the RemoteApp--that all run within the same user's session.
Users regularly forget that they have a RemoteApp open and double-click the RDP file to open a new one. This ends up consuming two licenses for the application until the user closes each instance. I have a Windows 2008 server also running a RemoteApp, and it correctly takes over the first session if the user attempts to spawn a second instance of the RemoteApp.
So I figure I missed something in the configuration of my Server 2019 RDApp.