AccUnit builds on SimplyVBUnit, a unit testing library and framework for VB6.
IMPORTANT
AccUnit requires version 3 of SimplyVBUnit which is not available anymore on the project's site.
Thus, use this setup file for SimplyVBUnit 3.0: SimplyVBUnitSetup.zip.
Download the setup for AccUnit here: AccUnitSetup.zip
Start you installation with Setup.exe. The setup attempts to install the Visual C++ 2010 Runtime. If you encounter problems while that part of the setup (typically because there is already a newer version of the C++ Runtime on your machine), start the installation with AccUnitSetup.msi.