telnet 2000 - Version 1.1 A lean, fast and powerful telnet client for connecting to IBM mainframe, AS/400 and UNIX systems. telnet 2000 performs flawless TN3270, TN5250, VT100, VT220 and ANSI terminal emulation. telnet 2000 is lightweight requiring less than 1M of memory and less than 2M of disk space. Even though it is small, telnet 2000 has the connectivity, configurability and automation features you need: multiple sessions, keyboard and mouse mapping, scripting language and macros. All this wrapped in an easy to use interface that is second to none.