title: Add refrence to Iconic.dll (DotNetZip) In My Wix Installer
body: <p>I have a program that uses the file 'Ionic.Zip.dll' from DotNetZip Library and I apply installer to this program.</p>
  
  <p>I'm using <strong>DotNetZip</strong>.</p>
  
  <p>Now I cant add a reference for 'Ionic.Zip.dll' to the Wix(installer) project, when i try to add reference I get the following error:</p>
  
  <blockquote>
    <p>“A reference to [filepath] could not be added. Please make sure that
    the file is accessible, and that it is a valid WiX reference.“</p>
  </blockquote>
  
  <p>I Think Wix only accept a Projects reference and not dll files.</p>
  
  <p>What can I do ? thanks a lot for your help!</p>