1)   Proxy Workbench 1.2
Proxy Workbench is a unique proxy server ideal for developers, trainers and security experts that displays its data in real-time.
Proxy Workbench, Proxy Server, Sockets, Socket, TCP, UDP Sockets, TCP Sockets, Packet Sniffing, Socket protocols, Packet Sniffer,

 2)   Socket Workbench 3.1
Socket Workbench is the definitive tool for analysing socket communications that underlie the Internet and several types of inter-process communication.
Sockets, Socket Workbench, UDP, Socket, TCP, UDP Sockets, TCP Sockets, Packet Sniffing, Socket protocols, Packet Sniffer,

 3)   ServerTalk 1.0
ServerTalk lets you communicate directly with an open TCP or UDP port on a machine. It is similar to a graphical Telnet client, but lets you pick the port, and lets you use TCP or UDP. ServerTalk is FREEWARE. Installer Included.
ServerTalk, TCP, UDP, TCP Sockets, UDP Sockets, Freeware,