title: How to create Revit add-in Windows installer in Visual Studio 2008
body: <p>Process of manually installing a Revit 2011 add-in:</p>
  
  <ol>
  <li>Put add-in DLLs in desired location, for example <em>C:Program Files\RevitAddin\RvtAddin.dll</em></li>
  <li>Create .addin xml file that contains information about add-in (location, full class name, etc.). This ".addin" file must be placed in one of the following locations:
  <ul>
  <li>For Windows 7: C:\ProgramData\Autodesk\Revit\Addins\2011\</li>
  <li>For Windows XP: C:\Documents and Settings\All Users\Application Data\Autodesk\Revit\Addins\2011\</li>
  </ul></li>
  </ol>
  
  <p>I can easily accomplish the first step with a Visual Studio 2008 Setup Project.
  For second step, I probably need to use Custom Action that would create xml .addin file. I don't know how to pass information(output location) from an installer to Custom Action.</p>