Freeware: Vt100

Tunnelier 4.25Free SSH client for Windows with graphical SFTP; Vt100 , xterm; dynamic and manual TCP/IP tunneling; auto-reconnect; scriptable console-mode SFTP; single-click Remote Desktop forwarding; FTP-to-SFTP bridge; Kerberos; public keys. Free individual use.

Tera Term (Pro)Tera Term (Pro) is a free software terminal emulator (communication program) for MS-Windows. It supports Vt100 emulation, telnet connection, serial port connection, and so on. Source code (C, C++) available (315 K).

SimpTermA Telnet client that allows a PC user to connect to a remote UNIX or MAINFRAME computer using either a modem or a TCP/IP network.

goSerial 0.1.7 alphaLets you talk to serial devices. goSerial is an application that lets you talk to serial devices.

ANSI32 2.07This useful program is a complete telnet ANSIX364 emulator, written in c++, for the Win32 Environment, if used at full screen can emulate completely one Linux box console.