title: Allowing the user downloading a file located in a specific IIS folder
body: <p>I have the following issue: ASP-MVC
  I want to put a file in a folder in IIS and allow users surfing my site to download it.</p>
  
  <p>In my site, I will have a link that points to an action method in my controller, and within this method I want to put the needed code. Never dealt with this issue before, will appriciate a  code sample. Thanks!</p>