Calling this method is what converts the underlying implementation of the IStatefulDictionary to use viewstate tracking over a stateful proxy.
After calling this method, IsTracking must be true. Calling this method multiple times should have no effect.
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