cports - TCP Port Viewer from Nirsoft

Ever been interested to see exactly which TCP ports are open and listening on your computer? Cports does just that. It will open a grid like listing of every port that is opening and listening on your PC. It also includes information such as Process ID of the process using the port and shows the local and remote addresses of the connection.

This is useful to find out which programs and services are using what. It can also be used to help recognize and eliminate programs that you don't use. Ultimately the fewer ancillary programs running on your computer the safer you will be.

Head to Nirsoft's web-site to download a copy!