title: Command Prompt Error 'C:\' is not recognized as an internal or external command.., when I used C:\>netstat -ano | findstr 0.0:443 this command
body: <p>I am trying to find the program which used 443 this apache port.</p>
  <blockquote>
  <p>Apache port:443 is being used by another application.</p>
  </blockquote>
  <p>But after I type</p>
  <blockquote>
  <p>C:&gt; netstat -aon | findstr 0.0:443</p>
  </blockquote>
  <p>this command at Command Prompt, I got</p>
  <blockquote>
  <p>'C:' is not recognized as an internal or external command, operable program or batch file.</p>
  </blockquote>