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Download NowVersion 1.5.4 for Windows, 7.8MB
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Other Download Options
If your first download did not work, click on one of the other links below to download and install Rationale™. All the download options will result in the installation of the latest version of Rationale™. If one does not work please try another.
If you do not have .NET 2.0 installed the installer will download and install .Net 2.0 for you. You will then need to restart the Rationale installer to complete the installation of Rationale.
- Download Rationale Installer (Option 1)
- Download Rationale Installer (Option 2)
- Download Rationale Installer (Option 3)
- As a further alternative you can download Rationale™ from Download.com. Click the button below to download:

Remember this download is a limited period full functioning trial. To keep using Rationale™ at the end of the trial period you can purchase a license key to release your copy from the trial time limit.
System Requirements
- Windows 98/ME/2000/XP/Vista/Server 2003
- 128MB RAM
- Microsoft .NET Framework 2.0 or greater must be present on your system. The Rationale installer will check to see whether you have .NET 2.0, and will help you install it if necessary. Alternatively you can download .NET from Microsoft here.
File Compatibility Issues
Earlier versions of Rationale™ cannot read files created with version 1.2 or later. More information.
Previous Versions
If you need to install an earlier version of Rationale™ you can download it here:
Help
Check out the FAQ page for more requirements and tips on installing Rationale™.
