it doesn't run on my computer either, I am using Win7 Ultimate, so I did some research, look here:1.Open control panel.
2.Then go into programs.
3.Then in programs and features there should be a part that says ‘turn windows features on or off ‘ .
4.Click ‘turn windows features on or off ‘ then on the list that appears simply check the box beside: Telnet Client.
5.Then click ok.