ObjectARX technology provides the foundation for design software applications to share intelligent object data. You can run third-party ObjectARX application programs or write your own.
To load an ObjectARX application, you use the Load option of the ARX command. After loading, all commands defined by this application are available at the command prompt.
Some ObjectARX samples contain an acad.rx file, which lists ObjectARX program files that are loaded automatically when you start AutoCAD.
