New software product, developed specially for engineers and system programmers.It is software that provides an engineer with toolkit, necessary for operating with COM-port. It is handy terminal program, and powerful visual data transmission protocol designer, as well as data acquisition and processing system. Furthermore, it is possible to organize the program management not only manually, but through the Internet as well. The management is realized by the server application.The program RS232 Pro can work as an ordinary terminal program. The user can tune up the COM-port in the way he needs. When started, the program opens the COM-port at once and switches to standby mode. After receiving byte succession (hereinafter called a packet) the data are received and displayed.The user may design himself any byte succession for subsequent forwarding by COM-port. RS232 Pro is multifunctional software, which allows you to start debugging communicational part of the device being developed or to organize the remote device management process on a serial bus at once.