GTA IV 2020 Complete Edition ASI Loader, ScriptHook and ScriptHookDotNet
complete package easy drag & drop installation.

Credits:
LMS for his CE Compatibility Patch : https://www.lcpdfr.com/downloads/gta4mods/g17media/26726-compatibility-patch-for-gta-iv-complete-edition/
Alexander Blade for his Asi Loader : http://www.dev-c.com/gtaiv/asiloader/
HazardX for his .NET ScriptHook : https://hazardx.com/files/gta4_net_scripthook-83