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TCP Optimizer 4.0.6

A tool that lets you modify TCP and IP related parameters

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TCP Optimizer screenshotThe TCP Optimizer is a small utility that will offer you a simple and intuitive interface for modifying IP and TCP related parameters in the Windows Registry. The application takes into account the TCP/IP implementation oddities, all related RFCs, checks all Registry locations for the same TCP/IP parameters and adds only the needed Registry parameters.

The TCP Optimizer is able to help both novice and advanced users in improving the TCP/IP parameters in Windows and enhancing their system to the type of the used Internet connection. the program uses advanced methods and algorithms to discover the best TCP Window for your specific connection speed.

The program supports all the versions of windows and provides some additional tools, such as finding the largest possible packet size, or testing average latency over several hosts.


  • It's suitable for both novice and advanced users.
  • Provides various additional tools.
Name TCP Optimizer
Version 4.0.6
Developer | see all products from this developer
Product Homepage TCP Optimizer
License Free (Freeware)
Last Week Downloads 2
All Time Downloads 1,311
Filename TCPOptimizer.exe
Filesize 0.7MB
MD5 Checksum 5367619C58CAF5C0D2E396B55E1AA0F5
OS Support Windows All
Category Internet

100% CLEAN Certification

BadgeTCP Optimizer has been tested by team against viruses, spyware, adware, trojan, backdoors and was found to be 100% clean. Our editors will recheck this software periodically to assure that it remains clean.


Old Versions

Software Date Added
TCP Optimizer 4.0.6 March 07, 2017 - Latest Version
TCP Optimizer 4.0.5 May 09, 2016
TCP Optimizer 4.0.3 November 09, 2015
TCP Optimizer 3.0.8 September 21, 2011
TCP Optimizer 3.0.7 March 25, 2011

Download the free TCP Optimizer