title: How can I show custom page when publishing my web site?
body: <p>We all know when we want to upload new dll files and upgrade our web application, web get this error when opening the website:</p>
  
  <blockquote>
    <p>Server Error in '/' Application.</p>
    
    <p>Could not load file or assembly '****' or one of its dependencies. The
    process cannot access the file because it is being used by another
    process. (Exception from HRESULT: 0x80070020)</p>
  </blockquote>
  
  <p>I'm looking for a solution to handle this error and show a custom html file when dll is uploading.</p>
  
  <p>Any Idea?!</p>