Free Internet Speed Optimizer
TCP Optimizer is a free portable Internet connection tuning and optimizing utility what enables you to achieve stable internet speed and network security. TCP Optimizer was designed in order to help you tweak broadband-related Windows Registry settings and network interface cards tweaking.
This Internet Speed Optimizer tool can tweak Dialup, DSL and Cable all from one simple to use interface. TCP Optimizer includes built in MaxMTU and Latency(Ping) detection utilities. TCP Optimizer makes it easy to find the best MTU and RWIN values, test latency and tweak all the important broadband related registry parameters. The Optimizer can be helpful with tuning any Internet connection type, from dialup to Gigabit+. TCP Optimizer also has the option to return your Registry to its default untweaked state as well.