ProcessTCPSummary is a network analysis tool, displaying a summary of all process that have TCP connections or listening UDP ports. For each process, this tool displays the total number of TCP connections, connections for each status (established, listening, syn-sent, syn-received...), number of IPv4/IPv6 TCP connections, common port numbers and more.

If run as Administrator, you can also watch the number of TCP/UDP bytes sent and received by every process, as well as the current send/receive speed.