C

class identifier (CLSID)

A universally unique identifier (UUID) for an application class that identifies an object. An object registers its class identifier (CLSID) in the system registration database so that it can be loaded and programmed by other applications.

class factory

An object that implements the IClassFactory interface, which allows it to create other objects of a specific class.

coclass (component class)

Component object class. A top-level object in the object hierarchy.