Open Command Prompt (Click 'Start' --> Run --> Type 'cmd' --> Press 'Enter')
To get the status of all port, give the below command:
netstat -aon
You will get a result like this
-------------------------------
Active Connections
Proto Local Address Foreign Address State PID
TCP 0.0.0.0:1110 0.0.0.0:0 LISTENING 296
TCP 127.0.0.1:1028 0.0.0.0:0 LISTENING 792
TCP 127.0.0.1:1037 127.0.0.1:1038 ESTABLISHED 684
TCP 127.0.0.1:1039 127.0.0.1:1040 ESTABLISHED 1944
Comparing the PID number with that in the Task Manager, you can find which application is listening to a specific port.
:-)
