RMS Express is a message exchange program similar to Airmail. It allows Peer to Peer and Winlink 2000 automated communications. The modes available include Telnet, Packet, Pactor, and Winmor. This means you may use a Pactor TNC and/or a sound card to communicate. No more excuses that you have to buy a TNC to do error free message exchange! Get it and install it from http://www.winlink.org/ClientSoftware . It will even do the version updates automatically for you. It calculates the best connections using propagation data and will update the station list by Telnet or RF.