A number of helpful learning-content management system programs have been developed in recent years to assist educators with creating Web-based instructional content. One such program is ATutor 1.4.2, which has been "designed with accessibility and adaptability in mind". The application was designed in part by The Adaptive Technology Resource Center at the University of Toronto and allows users to quickly assemble, package, and redistribute important instructional materials with relative ease and minimal frustration. The program's main homepage also contains helpful tutorials, customizable themes (so that users can customize the look and feel of each course), and complete documentation. This latest version of ATutor is compatible with all operating systems.