We can find here a good guide on how to configure everything by yourself: This package good demonstration of how everything should be configured by yourself to make it work. Do not use this package anywhere in production. This is a newbie package that contains 1 click solution for launching Hercules emulator with a single click. This pack already pre-configured and compiled, you need not do anything here, just download, extract, run.
TL DR: If you're a newbie, and want to launch a Hercules emulator and try it in 5 mins, just download everything here, extract, run OpenServer, Copy client files to kRO folder, run emulator, run client, login and play or do whatever you want to do.