If you are a developer, you maybe interesting in the source code.

• source code for version 0.2.11, download it here.
• source code for version 0.2.8, download it here.
  
• source code for version 0.2.5, download it here.
  

But please notes that the source code is published by GPL v2.

The code include two part:

• DLL for getting the system information, it is an Microsoft Visual C++ 2005 project, and from version 0.2.11, it is a VC6.0 project.
  
• Javascript & XUL for display.

And they are packed in a 7-zip package, get 7-zip here.