1)   Emsa Port Blocker 1.0.15
Emsa Port Blocker is a TCP blocking utility. What it does, is blocking unwanted tcp access from/to your computer with customizable rules. It is not a firewall, but acts in a somewhat similar fashion. Freeware.
port blocker, port blocking, tcp ports, tcp viewer, firewall, windows firewall, tcp, port, ports, blocker,

 2)   Atelier Web Security Port Scanner 4.61
AWSPS features a very comprehensive set of tools, some of them unique, for in-depth assessment of Network Security, namely 2 TCP port scanners, 1 UDP port scanner, 1 NetBIOS scanner, comprehensive Local Host and LAN information and much more.
scanner, udp, port scanner, syn, trojan, tcp, netBIOS, ping, nslookup, finger,