AusLogics BoostSpeed 

BoostSpeed keeps your PC running as fast as possible. It will boost Internet connections, clean registry and disks, increase Windows performance and more. Turbo-charge your PC in minutes!
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Robust Internet Speed Booster 

Boost & optimize your Internet connection speed with this set of tools - A free utility to help you keep your system healthy and responsive. This program is a package of 3 utilities, a network pinger, and internet speed booster, and a Free Mem tool.
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Paraben's I-Jolt 

Paraben's I-Jolt helps you optimize your Internet connection. By tweaking your Maximum Transmission Unit (MTU), Maximum Segment Size (MSS), Receive Window (RWIN), Time To Live (TTL), MTU Auto Discover, and more, you can obtain faster throughput.
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