The Abbey Ridge Auto-Pilot (ARAP) software is an Observatory Automation Language developed by Dave Lane to automate the operations and image processing at the Abbey Ridge Observatory. It has been under constant development since 2003. In 2014, it was significantly enhanced and is now used to automate the Burke-Gaffney Observatory at Saint Mary's University.
ARAP runs powerful text-based scripts containing English-like commands, in effect creating a rich observatory control language, that makes it very easy to automate observatory functions. This language is called DTL (Dave's Telescope Language!).
The comprehensive online manual includes its specifications and prerequisites. An installer for the full version can be downloaded here - it is fully functional, but will only run for 30 minutes. A licensed copy is $299US (introductory price) and includes one-year of support and updates.