If false, an attempt to access user interface capabilities (such as through a DisplaySession call) will have no effect and if the extension attempts to raise its own user interface it may fail.
This property will be false when operating in a headless environment like the Loupe Server.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2