title: How do I find which application is using up my port?
body: <p>I am unable to start GlassFish, because it keeps showing this error message:</p>
  
  <pre><code>SEVERE: Shutting down v3 due to startup exception : No free port within range: 8080=com.sun.enterprise.v3.services.impl.monitor.MonitorableSelectorHandler@ed7d1
  </code></pre>
  
  <p>How can I find what applications are using what ports on Windows&nbsp;Vista?
  I have tried using nmap zenmap using the following target:</p>
  
  <p><a href="http://127.0.0.1:8080" rel="noreferrer">http://127.0.0.1:8080</a></p>
  
  <p>But all I get is this:</p>
  
  <pre><code>Starting Nmap 5.51 ( http://nmap.org ) at 2011-08-05 12:05 Central Daylight Time
  
  NSE: Loaded 57 scripts for scanning.
  
  Read data files from: C:\Program Files\Nmap
  Nmap done: 0 IP addresses (0 hosts up) scanned in 4.55 seconds
             Raw packets sent: 0 (0B) | Rcvd: 0 (0B)
  WARNING: No targets were specified, so 0 hosts scanned.
  </code></pre>