42 Advice on software, also in the field of developing and designing software; computer programming, development and updating of software; computer software development and design for third parties; technical support for software; consultancy and software configuration for specific customer applications; updating, development, rental and maintenance of software; programming of individual software; programming of interactive, electronic, application-oriented software; installation and customized design of software for computers; design of software and software package (services on behalf of third parties)