HyperTerminal is not included in Windows 7 and Vista. I combined a list of alternative utilities that can be used instead. First is PuTTy PuTTy is a terminal program designed  not only for Serial port connections , it can be used to initiate SSH or Telnet sessions. Download PuTTy from here Second is Realterm Realterm is a serial/tcpip terminal program which can be used for , controlling and debugging binary and other difficult data streams. It is far better for debugging comms Read more