A site can implement this service if it wants to provide a list of extender providers. By default, the list of extenders is generated by querying each component in the container that implements System.ComponentModel.IExtenderProvider for the extenders each provides. By implementing this interface on a component site, a container can override the list of providers.

Namespace: System.ComponentModel.Design
Assembly: System (in System.dll)
Assembly Versions: 1.0.3300.0, 1.0.5000.0, 2.0.0.0, 4.0.0.0