Writing a Scripting Addition

• Apple's tech note on how to write a scripting addition:

  http://developer.apple.com/technotes/tn/tn1164.html

• A seminal article from MacTech Magazine:

  http://www.mactech.com/articles/mactech/Vol.10/10.01/ExtendApplescript/

• Useful notes from an experienced scripting addition coder:

  http://www.latenightsw.com/technotes/ScriptingAddition/

• Sample code for creating a scripting addition:

  http://www.satimage.fr/software/en/downloads_sample_projects.html