The Master is an application launched from the Web Console that provides the Account User a view of a Host desktop over a secure connection. The process of launching the Master in this manner via the Web Console interface is called Master on Demand. The Master on Demand is a feature available to Account Users only if the RAS Server is in Concurrent User license mode (see Master on Demand > License Considerations below for more detail). In Concurrent User license mode, the QuickConnect hyperlink will launch a connection to the Host using the ClickOnce Master (if plugin is present) or the HTML5 Master which launches a connection within a browser tab..