|IArcToolbox||Provides access to methods on the ArcToolbox object.|
|IPersist||Defines the single method GetClassID, which is designed to supply the CLSID of an object that can be stored persistently in the system. IPersist is the base interface for three other interfaces: IPersistStorage, IPersistStream, and IPersistFile.|
The ArcToolbox coclass manages the set of toolboxes and tools displayed inside the ArcToolbox, a dockable window. This dockable window can be displayed or hidden inside the ArcCatalog, ArcMap, or ArcGlobe applications. The ArcToolbox object provides utility methods for adding and removing toolboxes from the ArcToolbox window, invoking a geoprocessing tool dialog, etc.