Every application needs TCP/IP port to get it over the network. The question is how you tell that the application is using port? Number of methods are available that let you know what application has locked the port.
In this article you will see how to use built-in method to check that what is listening on a port. Built-in tools use the task manager and command line. A freeware application is available to perform all work in one utility.
How to use built-in tools
- First of all check that which port is in use. Set a special flag that informs you that which port is assigned for each identifier number of Windows process. Later on, you can use that identifier number to check that which process it is exactly.
- Go to command prompt write the command “
netstat -aon | more”. You need to open it in administrator mode in order to check all processes. You will see the list of PIDs or process identifiers on right side of window. Search for identifier that is assigned to port that you are trying for troubleshooting.
Open task manager. Select the Show Preferences for all Users option. Once you find the PID from list, you are free to end the process. You can also select “Go to Service(s)” option from menu to stop or process it. That’s it!
