CaptainFahim7/WinRAR_Activator ? reverse-engineered prompt

Build me a tiny Windows tool that helps someone register WinRAR by copying a provided license key file into the right WinRAR folder. I want it to be dead simple, with one script for newer Windows versions and one for older versions, plus a fallback manual method if the script does not work.

Make it easy for a regular person to use, with clear instructions for running it as administrator and a short message that tells them when the setup is done. If needed, include a downloadable key file and a README that explains how to use the official WinRAR install and what to do if an older unofficial version was installed before. Keep it lightweight and focused on making the process quick and painless.