CommNet is a 32-bit Windows application that seamlessly integrates modem dial-up and Internet Telnet capabilities. CommNet supports high-performance Zmodem file transfers with dial-up and Telnet sessions and Ymodem-G with dial-up sessions. CommNet supports FTP during Telnet sessions, and TTY, VT100, VT220, PC ANSI, and SCO ANSI terminal emulations. A unique Telnet Host Mode Server allows other Telnet clients to connect to the user's system for chat and file transfer operations. CommNet offers a built-in phonebook and expanded scripting and command-line options. Secure CommNet, a secure version of the software with SSH2 capabilities, is also available.