Downloads 
Download USB Polygraph 2.5.1 Software (click here) - 5/22/2019
Various improvements.

USB Polygraph 2.5.0 - 4/28/2019
You do not need to update software if you are successfully running the 2.4.6 version of the software. Only addition is running .NET 4.6 (Native Windows 10) and Help->Learn How To Use
USB Polygraph 2.4.6 - 9/12/2017
Numerous Improvements.
USB Polygraph 2.4.5 - 2/09/2017
Numerous improvements. Language support added for: English, Spanish, German, French, Italian.
USB Polygraph 2.4.1 - 12/12/2016
Miscellaneous bug fixes. Scrolling issue. Dual processor issue. Refresh fix.
USB Polygraph 2.3 - 12/10/2015
Miscellaneous bug fixes.
USB Polygraph 2.2 - 3/23/2011
This version fixes problems if you're having trouble with DirectX or have an old video card or problems with Windows 7. This version only requires .Net Framework 2.0 which is installed from the original CD.
USB Polygraph 2.0 - 4/02/20099
Get this version if you're having trouble with DirectX or have an old video card. This version only requires .Net Framework 2.o which is installed from the original CD.

 FAQ 
Problem: "Setup requires Microsft .NET Framework 4.6 Runtime"
Solution: You must install Microsoft .NET Framework 4.6 Runtime from Microsoft.
Click here to download it
Still having trouble? download it directly from this link

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All Rights Reserved Worldwide. USB Polygraph is a trademark of Swamiware LLC.