If you're looking for a smooth experience on modern PCs, consider these community-recommended fixes instead of compressed rips:
: Files from unverified sources like "GAmeostrom" may contain malware. It is safer to use the Official Rockstar Games site or Steam for the "Complete Edition". Grand Theft Auto 4 by GAmeostrom!part06rar
Walk through like Fusion Fix on the official version If you're looking for a smooth experience on
: Restores broken shaders and fixes various PC port bugs. Grand Theft Auto 4 by GAmeostrom!part06rar
: If part06.rar is missing or corrupted, the entire game will fail to extract. Always ensure you have all parts (01 through the final number) in the same folder.