Finding out which process is listening on a port on Windows?

If you want to see which process is listening on a port on Windows :

• Open cmd.exe
• Write netstat -aon | find /i "listening"

1. The first column shows which protocol is being used by this progress on transport layer. TCP or UDP.
2. Second column shows the port number of this progress.
3. Fifth shows one of the most important thing: Process ID.