HKN copies keystrokes and mouse clicks from one WoW to the other. If you set up WoW to do something on both WoW and press a key, that action should take place on both WoWs. Sometimes you need to write macros to help one WoW know what to do as a slave; /assist and /follow are the first things you need to get working. I have gotten HKN to run 2-5 WoW aand it takes 5 minutes to make the changes. Read the file Jafala linked and come back with questions.