title: Can't import User32.dll into Visual Studio
body: <p>I tried:</p>
  
  <ul>
  <li><p>To add <em>user32.dll</em> from <em>Reference Manager</em>, and imported it from <em>Windows\System32\user32.dll</em>, I got <strong>Error Message</strong>:</p>
  
  <p><strong>A reference to 'C:\Windows\System32\user32.dll couldn't be added.
  Please make sure that the file is accessible, and that it is a valid assembly or COM component.</strong></p></li>
  <li><p><code>using System.Runtime.InteropServices; [DllImport("user32")]</code></p></li>
  <li><p>To launch Visual Studio as Administrator</p></li>
  </ul>
  
  <p>Nothing works... it goes on my nerves I am trying 2 hours to import this damn .dll...</p>