THIS MOD REQUIRES FUSIONFIX IN ORDER TO WORK!!

But I recommend using GTA IV patch 1.0.7.0 / 1.0.8.0 for this mod as the z fighting fix and shaders + feature doesnt work
on GTA IV patch 1.0.4.0! 
but you can try using zolika's fusionfix branch to see if it works 
i have not tested that yet tho

REQUIRED:
FusionFix for patch 1.0.4.0 https://github.com/ThirteenAG/GTAIV.EFLC.FusionFix
FusionFix for patch 1.0.7.0/1.0.8.0 https://github.com/Zolika1351/GTAIV.EFLC.FusionFix

if you downgraded to patch 1.0.8.0 / 1.0.7.0
use the 1.0.7.0 + 1.0.8.0 patch folder and drag all and drop in directory

and if you downgraded to patch 1.0.4.0 use the 1.0.4.0 patch folder
and drag and drop everything in the folder

optional options

(1) DXVK

(2) the Recommended mods i put in the Recommended Mods.txt file