If you've got the game via Steam, you'll find that at C:\Program Files\Steam\steamapps\common\grand theft auto iv\GTAIV\. If you installed from a disc and used the default location, you'll find that at C:\Program Files\Rockstar Games\Grand Theft Auto IV\GTAIV\. Now put that file in your main GTAIV install folder – that's the one with the GTAIV.exe. ģ) Once you've got the archive, open it and extract the dsound.dll within. There are instructions there for how to troubleshoot problems, should you encounter any. Ģ) There are lots of ASI loaders, but the first - and the one I'm using - was created by Alexander Blade. Install this once, and almost every mod will work.ġ) Start by grabbing the latest GTA IV patch. It's a simple file that allows you to load custom libraries – i.e. It's what makes time travel modding possible.