ArcObjects Library Reference (MaplexUI)  

MaplexExtension CoClass

Represents the Maplex Extension.

Description

The MaplexExtension object is the Application Extension to ArcMap that handles licensing.  By obtaining a reference to the extension, you can enable and disable it for use.  You can only enable it if a license is available.

Interfaces

Interfaces Description
IExtension (esriSystem) Provides access to members that define an extension.
IExtensionConfig (esriSystem) Provides access to members that describe an extension.
IPersistStream (esriSystem)