View port occupancy under windows

Start--Run--cmd Enter the command prompt and enter netstat -ano to see all the connected PIDs. Then find the program corresponding to this PID in the task manager. If there is no PID in the task manager, You can select "View"-"Select Column" in the Task Manager. Often, when we launch the application, we find that the port required by the system is occupied by another program. How do we know who owns the port we need? Many people have a headache, here is a very simple way, I hope to be useful to everyone. If we need to determine who is occupying our 9050 port 1, the Windows platform is executed under the windows command line window: C:\\>netstat - Aon