Arbortext Editor provides a custom directory structure within the PTC Arbortext installation tree where you can store your custom applications. When Arbortext Editor starts, it automatically looks for files in this directory structure and loads them. You can place custom files such as Java (.class and .jar), JavaScript (.js), JScript (.js), VBScript (.vbs), ACL (.acl), and various configuration files in their supported locations within the Arbortext-path\custom subdirectory structure to make them available.

Refer to the Programmer's Reference for more information.