Hi there! My name is, Zadee. I'm an Independent Advisor and a Microsoft user like you. Sorry to hear about your experience. I'll try my best to help you today.
That has to be something with compatibility, I've done some research on its requirement, this was produced during xp and vista times. You're getting that error because the application has not been updated ever since and there are other security measures now before you can install apps in the latest Win 10/11 versions which the app was able to pass.
You can try running the setup file in compatibility and see if that goes through. Just right-click the setup or installer file > Properties > Compatibility tab > Check Compatibility mode "Run this program in compatibility mode for" > Select Win Vista > Ok > Run the setup again.