Netmon is a handy and easy-to-use graphical interface for the Netstat utility that ships with Windows. Its main purpose is to view connections to or from your computer made with TCP and UDP protocols. It offers a complete list of well-known ports and a substantial database of Trojan horses and worms, which it searches when it first loads. You can also use Netmon to retrieve IP, TCP, UDP, and ICMP statistics.
