Enabling Telnet in Windows Vista is a little bit more difficult than its predecessors but it still can be done. This video will demonstrate exactly how to enable Telnet in Windows 7 and Vista.
This is how you enable telnet in Windows Vista/Windows 7
Step 1. Click on start.
Step 2. Goto Control Panel.
Step 3. Goto Programs. (NOT UNINSTALL A PROGRAM!)
Step 4. Goto Turn windows features on or off.
Step 5. Find Telnet client & Telnet server.
Step 6. Click on them and hit ok.
Step 7. Wait & your done =D.