title: SVN External Files / Folders
body: <p>Could someone share some info or reference links which sheds some in-depth information on how SVN handles 'external' folders / files. I did get some links from SO and some other sites, but none of them explain it in detail. I am developing a generic API that need to support most of the available CM tools (SVN, PTC Integrity, TFS etc). </p>
  
  <p>Regards, 
  Joe.  </p>