IMPORTANT: Install this AFTER you've installed the main files! Only install if you wanna use ELS!
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Install these files if you wan't to use Emergency Lighting System V8 (ELS V8). It enhances all forms of emergency lighting in GTA IV and makes them look a lot more realistic. All the files you need is included in this folder.

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Installation:
Extract all the files and folders to your GTA IV/EFLC main folder -

GTA IV:
Retail: C:/Program Files/Rockstar Games/Grand Theft Auto IV
Steam: C:/Program Files/Steam/steamapps/common/Grand Theft Auto IV/GTA IV

EFLC
Retail: C:/Program Files/Rockstar Games/EFLC
Steam: C:/Program Files/Steam/steamapps/common/Grand Theft Auto IV Episodes from Liberty City\EFLC