Extract .zip and install PCSX4
Create PCSX4 account by clicking > PCSX4 > Manage PCSC4 account > “Register”, sign-in and link your PDIX to the account.
Insert PS4 game disc into your drive.
Install game cache from > Emulation > Install game cache form BD-ROM, Select disk drive, cache folder and click on “Install game cache”. This will take a while. Make sure that you have enough free disk space on your PC to save the cache.
Start your game by clicking “Emulation > Open saved cache” and select one of your previously saved game. Please note that you may need to configure graphics, audio, controller config. etc. according to your hardware.