42 INSTALLATION OF COMPUTER SOFTWARE ENABLING AN EXCHANGE OF INFORMATION AND DATA BETWEEN COMPANIES AND THEIR CUSTOMERS OVER INTERCONNECTED COMPUTER NETWORKS LINKED BY COMMON PROTOCOLS OR OTHER INTERACTIVE CHANNELS FOR THE PURPOSE OF ISSUING, RECEIVING, REVIEWING, MONITORING, PAYING AND CREDITING BILLS, INVOICES, AND STATEMENTS; AND OPERATING MANUALS FOR USE THEREWITH; TECHNICAL SUPPORT SERVICES NAMELY TROUBLESHOOTING OF COMPUTER SOFTWARE PROGRAMS VIA TELEPHONE, E-MAIL AND IN PERSON ENABLING AN EXCHANGE OF INFORMATION AND DATA BETWEEN COMPANIES AND THEIR CUSTOMERS OVER INTERCONNECTED NETWORKS LINKED BY COMMON PROTOCOLS OR OTHER INTERACTIVE CHANNELS FOR THE PURPOSE OF ISSUING, RECEIVING, REVIEWING, MONITORING, PAYING AND CREDITING BILLS, INVOICES, AND STATEMENTS; AND OPERATING MANUALS FOR USE THEREWITH; CUSTOM DESIGN OF COMPUTER SOFTWARE ENABLING AN EXCHANGE OF DATA BETWEEN COMPANIES AND THEIR CUSTOMERS OVER INTERCONNECTED NETWORKS LINKED BY COMMON PROTOCOLS OR OTHER INTERACTIVE CHANNELS FOR THE PURPOSE OF ISSUING, RECEIVING REVIEWING, MONITORING, PAYING AND CREDITING BILLS, INVOICES, AND STATEMENTS; AND OPERATING MANUALS FOR USE THEREWITH