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SpeedGuide TCP Optimizer v3.0.8

Vista / Win10 / Win7 / Win8 / WinXP
SpeedGuide TCP Optimizer is a useful free tool you can use to optimize your Internet connection in Windows.

The tool uses advanced algorithms, and the bandwidth*delay product to find the best TCP Window for your specific connection speed. It provides for easy tuning of all related TCP/IP parameters, such as MTU, RWIN, and even advanced ones like QoS and ToS/Diffserv prioritization.

The program works with all current versions of Windows, and includes additional tools, such as testing average latency over multiple hosts, and finding the largest possible packet size (MTU).

The tool was developed and is distributed free by


SpeedGuide TCP Optimizer v3.0.8

speedguide tcp optimizer tweaking internet connection

License type Freeware1
Author's homepage Visit the author's site
Date added 23 Feb 2019
Downloads 1,398
File size 644 kB (<1min @ 1Mbps)
Supported languages English
Operating systems Vista / Win10 / Win7 / Win8 / WinXP1

1License and operating system information is based on latest version of the software.

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SpeedGuide TCP Optimizer v3.0.8


12 Jun 2021