Going to RGL settings see there installed games choose GTAIV and turning off automatic updates

If you can't do it so for RGL version better don't install any textures mods or cars because this increase chance for update It has double check anyway if you see update in this way you need to change all files again sometimes it shows 0 bytes update it's fine also update happens when you restart pc/rgl or rare when you close the game after just replace files again it works

2020 Complete Edition ASI Loader + ScriptHook

https://www.gtainside.com/en/gta4/mods/161408-2020-complete-edition-asi-loader-scripthook/

