Promoter End user license agreement
The code is free for learning and technical divulgation purposes but if is used (enterely or by parts) for business you MUST acquire a license.
Additions or modifications of the code MUST be made availables on Internet as the Promoter code is.
When a buyer acquire a license can install Promoter in as many machines as he wants.
The Promoter copyright is owned by Germán S. Arduino.
This license may change with the time. By any doubt contact the author by mail to: gsa at arsol dot net.