Class Factory Options
An ActiveX Control, by virtue of being a COM object, must have associated server code that supports control creation through IClassFactory as a minimum.
It is optional, not required, that this class object also support IClassFactory2 for licensing management. Only those vendors that are concerned about licensing need to support COM's licensing mechanism. In other words, because IClassFactory2 is the only way to achieve COM-level licensing, this interface is required on the class object for those controls that want to be licensed.