Assembly: System.Management.Automation (in System.Management.Automation.dll)
A property set typically defines a subset of the properties of a specific PSObject type. In general, a property set can be used whenever a collection of properties (of the same type) is needed. For more information about the property sets, see ETS Member Sets.
For more information about the different types of properties, see ETS Properties.
Although it is possible to derive from this class, there is no established scenario for doing this and any attempt to do so might result in unexpected behavior.