title: Why %processor_architecture% always returns x86 instead of AMD64
body: <p>I am trying to retrieve the environment variable to detect whether the system is 32 or 64 bit.
  But on 64 bit server the environment variable <code>%processor_architecture%</code> is returning <code>x86</code> instead of <code>AMD64</code>.</p>
  
  <p>Does anyone has any clue about this?</p>