title: How can I use Sandcastle Help File Builder to generate documentation without documentation source?
body: <p>I want to be able to generate help documentation from existing topic files (.AML) using  Sandcastle. I use Sandcastle Help File Builder to assist the with the configuration and generatation of the documentation.  </p>
  
  <p>I do not want to publish any code documentation, however, if I do not specify a Documentation Source (e.g., project, solution, dll, exe, etc.) then the build fails.</p>
  
  <p>How can I configure Sandcastle Help File Builder such that I can generate documentation without exposing the code documentation?</p>