A quick hkn-script for simple broadcasting and starting the WoWs would look like this:

Code:
<Command LaunchAndRename>
 	  <SendPC %1%>
	     <Run %2%>
    	     <RenameTargetWin %3%>
    	     <RemoveWinFrame>
  
<Hotkey Alt Ctrl L>
  	<LaunchAndRename Local "C:\temp\multi\w1\wow.exe" WoW1>
  	<LaunchAndRename Local "C:\temp\multi\w2\wow.exe" WoW2>

<Label w1 Local SendWinM WoW1>
<Label w2 Local SendWinM WoW2>

<KeyList MyList A-Z, 0-9, Enter, Tab, Oem4, Space, Comma, Oem6 except W, A, S, D, Q, E, L>

<Hotkey MyList; Shift MyList; Alt MyList; Ctrl MyList>
 	<SendLabel w1, w2>
 	     <Key %Trigger%>

<MovementHotkey up, down, left, right>
   	<SendLabel w1, w2>
   	    <Key %Trigger%>

<hotkey pause>
 	<sendpc local>
 	       <ToggleHotkeys>
Only thing you would have to change is the "C:\temp\multi\w1\wow.exe" in <LaunchAndRename Local "C:\temp\multi\w1\wow.exe" WoW1> to the directory you want to start the first WoW from, and "C:\temp\multi\w2\wow.exe" in <LaunchAndRename Local "C:\temp\multi\w2\wow.exe" WoW2> to the directory to start the second WoW from.

After specifying the directories, you can simply start HotKeyNet, load the script and then start the WoWs with a press of 'Ctrl + Alt + L'.

I hope this helped.

For more explanations or more features like resizing/positioning its best you take a look at the Guide in my signature or directly at www.hotkeynet.com.