Gets a collection of property names whose values have been explicitly set
as well as the corresponding values.
Property Value
A reference to an object that implements in the
System.Collections.IDictionary interface.
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