CommSpy is a Macintosh utility that shows the data being sent and received on the serial ports. It performs the function of a hardware line monitor, but does it strictly in software. CommSpy can monitor multiple serial ports simultaneously. Use it to troubleshoot modem script files, or to develop communications software of your own. You can view the data as hexadecimal, as text, or as hex and text at the same time. You can save what you see as a CommSpy document, too. Applications using the serial ports are completely unaware of its presence. However, applications that bypass the normal serial port drivers can not be monitored. CommSpy supports Apple's Communications Toolbox, but does not require it. ----------- Other than this product, has anyone seen or used any other that does the same thing? I need to monitor some stuff moving in and out in the serial port and I don't feel like writing my own app to do it. Oh, the above product is in beta testing right now, so I can't even buy it...drat. Mel Patrick - theWabbitGuy - mel@... mailto:mel@... http://www.intergate.bc.ca/business/mel