PASSPORT PC TO HOST is a powerful, Windows-based multi-host access solution designed specifically for TCP/IP communication. As a result, the TN3270, TN5250, SCO ANSI and VT terminal emulation suite is fast, reliable and has a very small 5MB footprint. The Zephyr application is ideal for customers who want to replace older multi-protocol terminal emulation that has a large footprint, with a robust, IP-only client.