TCPView - TCPView is a Windows program that will show you detailed listings of all TCP and UDP endpoints on...
TCP Optimizer - SpeedGuide.net - The Broadband Guide. Cable modems, DSL, Wireless, Network security. Free speed tweaks and TCP/IP tools for optimizing system performance.
Proc Net Monitor - SecurityXploded is an Infosec Research Organization offering 200+ FREE Security/Password Recovery Tools, latest Research Articles and FREE Training on Reversing/Malware Analysis
Ashampoo Internet Accelerator - Ashampoo Internet Accelerator is an internet connection optimizer and booster that allows you to tune your connection settings.
CurrPorts - CurrPorts displays the list of all currently opened TCP/IP and UDP ports on your local computer.
SpeedConnect Internet Accelerator - SpeedConnect Internet Accelerator is software for optimizing your internet connection and boost the speed as well as response.