title: Developing plugins for AutoCAD?
body: <p>I'm thinking about starting to develop a plugin for AutoCAD, but I have absolutely no knowledge of the field. How does the plugin system work? What are the licensing terms? What programming platforms are available?</p>
  
  <p>I'd really appreciate if somebody could give me a primer, or, even better, link to some resources for the total beginner I am.</p>
  
  <p>Thanks!</p>