title: Pass multiple files / folders from windows explorer to external application
body: <p>Hi does anyone know how to get windows explorer to pass multiple files / folders through to an external app (c#) referenced in the registry?</p>
  
  <p>I am current able to act upon a single file / folder using the %1 syntax but not sure how to get explorer to pass through multiple items.</p>
  
  <p>Does anyone know how to do this?</p>