File:CASTOR02.png

Source
Screenshot of Castor Intro 2 by Castor Cracking Group produced by uploader.

Fair use for Castor Cracking Group
While the piece of software is protected by copyright by default since the authors have not explicedly given a license for the work, in those days the software would have been considered public domain as a demo, where the copyright holders encouraged a liberal view on copying of their own software....as well as others. Furthermore,
 * The product was never sold in any way
 * The image's only purpose it to aid in the description of the article