Step by Step Instruction for redirect a port in cmd

Question

i am trying to do my first super simple chat application in android.

I'm trying to follow this tutorial [1]: http://www.edumobile.org/android/android-development/socket-programming/

I did everything as described but under Point 5. i lack some basics. There is written i shall redirect the port:

5.) Redirect the port : i) run -> cmd -> telnet localhost 5554 ii) redir add tcp:5000:6000

But my problem is i have no idea how to use the cmd, never did it before and need now something like a super Step-by-Step-Instruction for Dummies who never opened before the cmd and shall now redirect a port. Can anybody help me???