Prerequisites:


Visual C++ 2010 Redistributable http://www.microsoft.com/download/en/details.aspx?id=5555
ScriptHook Redistributable (http://www.mediafire.com/?gnj4cnftoa4ke99)
ASI loader (http://www.megamods.de/_data/parts/dl.php?file=84)



Description:
This script mod unlocks all the doors in GTAIV/EFLC on a key press and dynamically unlocks/locks an individual door on a key press.


Install instructions are in the "Readme.txt"


This script mod is only tested on GTAIV 1.0.7.0 and EFLC 1.1.2.0
 should still work on older versions, just needs a compatible ScriptHook redistributable version for your game version.


I apologize for the long time this has taken, I wasn't paying attention to this mod. You can get the ScriptHook Redistributable and the ASI loader from the external links I found.