Abstract: Systems and methods are disclosed for creating and delivering skill-enhancing applications based on pre-recorded media content without altering the prerecorded media content.

Abstract: Systems and methods are described for optimizing network data transfers using multiple classes of network resources and network intelligence gathered and integrated by a multi-perspective network optimizer so as to maximize the performance, scalability and commercial controllability and minimize the cost of network data transfers in heterogeneous networks such as the internet.

Abstract: A virtual broadcast system and method for managing the performance of digital media in computer networks is described which supports the exercise of the performance rights of creators and the accurate accounting and distribution of performance rights royalties.

Abstract: A system and method for transmitting data in computer systems using virtual streaming is described. Virtual streams are created by separation of the data into a plurality of parts which are stored on various components of the system and transmitted through multiple channels as partial streams, each representing a part of an overall virtual stream. The multiple partial streams are adapted to the characteristics of multiple channels allowing flexibility in optimizing the system for data link bandwidth requirements, user choice of specific desired contents, immediacy of media delivery, and security. The multiple partial streams comprising a single virtual stream are re-combined at the destination for presentation or subsequent processing.

Abstract: Systems and methods for adapting a client computer in a network so that it is loaded with software that is available for purchase or demonstration, evaluation, advertising or solicitation and the user is provided with the ability to select desired software and effect a commercial transaction to license use of the software on the client computer or purchase goods and services is described.