NamedValues is a collection of NamedValue objects. Each object in the collection has a name, which is a string, and a value, which is a variant.
MTNVS is a thread-safe version of NamedValues. It implements all the NamedValues and INamedValues2 methods and properties as well as native versions (prefaced by "MT") of the same.
This object is independently creatable.
In PI-SDK Release 1.1, an upgraded version of NamedValues was added. The upgraded version implements the interface INamedValues2, which has all the properties and methods of NamedValues, plus some additional methods.
This object supports the IRefresh interface.