Script Hook V is the library that allows to use GTA V Native Trainer script native functions in custom *.asi plugins. Note that it doesn’t work in GTA 5 Native Trainer, script hook disables custom scripts when player goes in multiplayer.

This distrib also includes the latest Asi Loader and Native Trainer.

Installation

1. Copy ScriptHookV.dll to the game’s main folder, i.e. where GTA5.exe is located.
2. In order to load asi plugins you need to have asi loader installed, you can download it separately or use the latest version that comes with this distrib (dsound.dll).
3. This distrib also includes a sample asi plugin – native trainer, if you need a trainer then copy NativeTrainer.asi too.

Native Trainer Controls
F4 – activate
NUM2/8/4/6 – navigate thru the menus and lists (numlock must be on)
NUM5 – select
NUM0/BACKSPACE/F4 – back
NUM9/3 – use vehicle boost when active
NUM+ – use vehicle rockets when active

Download link:

http://gtaforums.com/topic/788343-script-hook-v/