As part of my project, I need to interface a PC (Windows machine) with a hardware component that I created. The communication is done via a standard db-9 socket (AKA COM port). However, due to the restrictions of my hardware component, the communication process needs to follow an XYZ-modem type protocol, that I have adapted for various reasons. Thus, I need to have a program that runs this protocol. I am rather proficient in Perl, but have never dealt with serial communication. I saw that there are several modules, but there are almost no examples. Also, the fact that they are in v0.19 is kind of shying me away. Has anyone heard/seen/used these modules and make any recomendations? Or can someone suggest a beter way?