HyperTerminal is no longer part of Windows. There are several options you can use to replace its functionality.
If you only need remote shell access, you can use WinRS (Windows Remote Shell), new in Windows Vista. To get help with WinRS, type winrs /? at the command prompt, and then press ENTER.
Telnet is a simple, text-based program that you can use to connect to another computer over the Internet.
If you previously used HyperTerminal to troubleshoot modem problems, use Phone and Modem Options instead:
Open Phone and Modem Options by clicking the Start button , clicking Control Panel, clicking Hardware and Sound, and then clicking Phone and Modem Options.
You might need to provide information, such as your country or region and any special phone dialing rules, in the Location Information dialog box before you can access the Phone and Modem Options dialog box.
If you previously used HyperTerminal to control serial devices, you can usually find a downloadable version of HyperTerminal on the Internet that is free for personal use.