This property is used to track the number of properties this object is sending to ClientState. Each derived class overrides this property to indicate the new total of properties. The number consists of the PropCount value of the base class plus the number of ClientState properties utilized by each derived class.
Target Platforms: Windows 10, Windows 8.1, Windows 8, 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