SOLVED: Delete ScripthookVDotNet.asi/2/dll and 3.dll, remove them from your GTAV folder., make sure you have AdvancedHookV.dll installed. (Search for this file for download) ELS will work after these edits.
I have the exact same symptoms as Mr. Scoobs. Rage, Scripthook, LSPDFR, GTAV all updated. minimal mods, game runs fine if I remove scripthook but ELS won't work. With scripthook the game crashes/closes upon LSPDFR/hooking. Reinstalled, Antivirus off or permissions granted, even tried a different antivirus, still can't load with scripthook.
Magnificent pack! Been using it for a while. I drive a Jeep SRT and the trackhawk looks just like it.... nothing better than hauling around in my own ride in the game. I even went in and tweaked the handling as it drives like a sports car, not an FBI2!