Thanks James for 1. replying me so promptly (I'm sure you are busy with other important tasks). 2. Helping guide me into solving my problem. i totally missed a crucial step that was glaring after watching you youtube video. I am posting the code below. Even though it is a very simple command, I hope it can be helpful to other users (maybe other newbies like me).

<?xml version="1.0" encoding="utf-16"?>
<command id="537" name="Toggle window" enabled="true" alwaysOn="False" confirm="False" requiredConfidence="0" loop="False" loopDelay="0" loopMax="0" description="">
  <action>
    <cmdType>XJson.Btn.KB</cmdType>
    <cmdString>backslash</cmdString>
    <cmdRepeat>1</cmdRepeat>
  </action>
  <phrase>Toggle window, backslash, expand window, contract window</phrase>
</command>

Hi I'm a newbie on this forum with little to no programming skillls (but a very fast learner).  I have been trying out Voxcommando and I'm very excited about it's invention. Thanks James. All the contributors on this forum have been very helpful with their posts.  Great work guys.  I am trying to create the command 'Backslash' to be able to toggle in and out of fullscreen on my computer and I'm getting stuck (voxcommando does not recognize my command). What am I doing wrong. Please help.
I copied my command for toubleshooting:

<?xml version="1.0" encoding="utf-16"?>
<command id="537" name="Toggle window" enabled="true" alwaysOn="False" confirm="False" requiredConfidence="0" loop="False" loopDelay="0" loopMax="0" description="">
  <action>
    <cmdType>XJson.Btn.KB</cmdType>
    <cmdString>backslash</cmdString>
    <cmdRepeat>1</cmdRepeat>
  </action>
</command>

Thank you