title: "The specified port is in use" IIS Express error when debugging specific project in Visual Studio
body: <p>I have been using this same project for years without having this issue. Suddenly it happens every time I first boot my PC.</p>
  <p>If I go into the log, this is the error I get:</p>
  <pre><code>Failed to register URL &quot;http://localhost:50496/&quot; for site &quot;FMSProd(1)&quot; application &quot;/&quot;. Error description: The process cannot access the file because it is being used by another process. (0x80070020)
  </code></pre>
  <p>Running command prompt as administrator and running &quot;net stop winnat&quot; followed by &quot;net start winnat&quot; fixes the issue until the next boot. But I have to do it every time I reboot.</p>
  <p>I have traced the process using that port, it's devenv(visual studio). Version of visual studio does not matter. Changing the port number on the project does not fix it.</p>
  <p>Is there anything I can do to fix this and prevent it from recurring every single reboot?</p>