Programming of multimedia applications; Software authoring; Software development for others in the field of software configuration management; Software porting; Computer programming; Computer software design; Computer software design and updating; Computer software installation and maintenance; Computer software rental; Computer and computer software rental; Computer hardware and software design; Computer programming and software design; Copying of computer software; Customizing computer software; Design and development of computer game software and virtual reality software; Installation of computer software; Rental and maintenance of computer software; Rental of application software; Repair of software; Repair of computer software; Testing of computer software; Updating and design of computer software; Updating and maintenance of computer software; Updating of computer software