42 Design and development of computer software; installation, maintenance and updating of computer software for others; leasing of computer software; computer software technical support services, namely, troubleshooting of computer software problems; providing online non-downloadable computer software for creating, managing, and delivering advertisement, marketing and promotional materials, measuring user interactions; none of the aforesaid services relating to software for use in organizing, transmitting, manipulating and reviewing audio files on portable and hand held digital and electronic devices; providing online non-downloadable software for creating, managing, and delivering advertisement, marketing and promotional materials, measuring user interactions for use by advertisers and video content publishers for advertising, marketing and promotional services; hosting of websites for others; design, creation and maintenance of websites for others; designing, developing and integrating internet applications and associated technologies; information, advisory and consultancy services relating to the aforesaid services