dtelnet
- Open source telnet client for Windows 16/32.
- http://dtelnet.sourceforge.net/

PuTTY
- A Free Win32 Telnet/SSH Client
- http://www.chiark.greenend.org.uk/~sgtatham/putty/

Vista tn3270
- Windows 3270 terminal emulator from Tom Brennan Software. Free trial version available.
- http://www.tombrennansoftware.com/

Tera Term
- Free Telnet client for Windows (16 and 32 bit). Source code and a Secure Shell extension available.
- http://hp.vector.co.jp/authors/VA002416/teraterm.html

Rudenko ShellTelnet
- Windows-32 Telnet client for use with a Unix shell account. It shows Unix files in a Windows Explorer manner for easy navigation and file management.
- http://www.rudenko.com/shellnet.html

J-Term Professional
- Shareware telnet client for Windows with Pascal-based script language and an FTP client.
- http://www.jonesautomation.com/jtermpro.html

EasyTerm
- A freeware Telnet terminal client for 32-bit Windows.
- http://www.arachnoid.com/easyterm/

WRQ Reflection for the Web
- Web-based terminal emulation that connects browsers to IBM, HP, OpenVMS, or UNIX mainframes using Telnet or other host connectivity protocols.
- http://www.wrq.com/products/reflection/fortheweb/

CRT
- Very popular Win32 client.
- http://www.vandyke.com/products/crt/

JET Java Applet Emulators
- IBM 3270 and Tandem 6530 terminal emulators and APIs for Java.
- http://www.platypuspartners.com/products.html

Rasmussen Software, Inc.
- Telnet clients for Winsock TCP/IP and Serial connections.
- http://www.anzio.com/

ICOM Informatics
- Winsurf+ PC-to-host connectivity and Winsurf Mainframe Access Web-to-host connectivity with high-level data security options.
- http://www.icominfo.com

PowerTerm InterConnect
- tn3270 and tn5250 terminal emulation software for IBM terminals.
- http://www.ericom.com/pti.asp

TN3270, TN5250 and VT100 terminal emulation for Windows.
- TN3270 Plus includes terminal emulation for 3270, 5250 and VT100 terminals and an integrated set of TCP/IP utilities in a compact easy to use product.
- http://www.sdisw.com/

Nexus Mainframe Terminal
- A telnet 3270, 5250, VT and ANSI terminal and printer client. It also includes a FTP client. It has support for recording, script and HLLAPI, and the LPD protocol is supported by the printer emulator. Both the terminal and the printer emulator have suppor
- http://www.nexit.no/

Ericom
- the developer of the PowerTerm series of terminal emulation products. They support a full line of emulation types, including IBM (TN3270E, 3270, 3278), Digital (VT520, VT420,VT320,T220), Wyse and General Data.
- http://www.ericom.com/

MochaSoft
- Software development company specializing in communication software. They sell Telnet, TN3270, TN5250 and LPD products for Windows-95/98/3.11, Macintosh, Java and PalmPilot.
- http://www.mochasoft.dk