Download the purple version of Visual Studio i use 2022 community, download the C++ library, open the ".sln" project, then go to the top bar and there will be a menu called "compile", click on it and then on the "compile solution" option and you will see at the bottom of the program that it started compiling and if you get errors it's because maybe the source it's broken (u can fix with ai if u dont have the knowledge), needs some dependencies, missing files, it's not the complete source code or idk. Good luck ig