Earlier quoted context omitted.
> You can install telnet via the add features option from the control panel. Who wants to have such insecure program available anyway? There's no security problem with the telnet client, unless you're using it to log into remote hosts without encryption. But OP, and presumably many other people (like me), use telnet as a simple TCP client for troubleshooting. On Linux, one can use netcat (though I never remember to t…
There are better GUI tools for such purposes.
Telnet-for-Windows was a terrible interface for this purpose (if it succeeds, you get left at a meaningless command prompt) but it was possible to talk people through that, and that was enough. (You can't trust the proxy configuration of their web browsers.)