Appendix E: Telnet Client and Telnet Server in Windows Vista

This appendix provides a brief description of the Telnet client and Telnet server features that can be turned on in Windows Vista.

For more information about the Telnet client in Windows Vista, search Help and Support on Windows Vista, or search Windows Vista Help on the Microsoft Web site at:

For information about Telnet, you can search the Internet Engineering Task Force (IETF) Web site at:

(Web addresses can change, so you might be unable to connect to the Web site or sites mentioned here.)

How to Turn On Telnet and Telnet Features

In Windows Vista, both Telnet client and Telnet server features are available, although they are not turned on by default. Instead, these features can be turned on by an administrator (or a user with an administrator account) through Control Panel\Programs\Programs and Features (click Turn Windows features on or off). Instructions for turning on the Telnet client are provided in Help in Windows Vista.

To prevent users from turning on the Telnet client or Telnet server, you can ensure that they do not have administrator accounts. As an additional step, you can use a script to check if Telnet.exe is present on a computer that runs Windows Vista.

Note that a terminal-emulation program called Hyperterminal was available in Windows XP, but it is not available in Windows Vista.