Steam , Windows 8.1 , 64bit . I tyried manual and automatic installer. Already have .net framework 4,5 ScriptHookDotNet 2015-10-25 03:04:54 - Initializing ScriptHookDotNet v1.7.1.7 BETA (on GTA IV version 1.0.7.0 with C++ Hook version 0.5.1) 2015-10-25 03:06:18 - Direct3D device created! 2015-10-25 03:06:18 - SEARCHING FOR SCRIPTS... 2015-10-25 03:06:18 - Loading scripts in Assembly 'scripts\LCPDFR Loader.net.dll' ... 2015-10-25 03:06:18 - ...found script 'LCPDFR_Loader.Loader'! 2015-10-25 03:06:18 - ...found script 'LCPDFR_Loader.PublicScript'! 2015-10-25 03:06:18 - DONE! 2 valid scripts found! 2015-10-25 03:06:18 - STARTING SCRIPTS... 2015-10-25 03:06:18 - INFO: Phone number checks are not available! 2015-10-25 03:06:18 - ...successfully started script 'LCPDFR_Loader.PublicScript'! 2015-10-25 03:06:18 - ...successfully started script 'LCPDFR_Loader.Loader'! 2015-10-25 03:06:22 - Error during Tick in script 'LCPDFR_Loader.Loader': System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.BadImageFormatException: Could not load file or assembly 'AdvancedHook.dll' or one of its dependencies. is not a valid Win32 application. (Exception from HRESULT: 0x800700C1) at .(String ) at LCPD_First_Response.Engine.Main.() in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Main.cs:line 234 at LCPD_First_Response.Engine.Main.Main_Tick(Object sender, EventArgs e) in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Main.cs:line 211 --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at LCPDFR_Loader.Test.Tick(Object sender, EventArgs e) at LCPDFR_Loader.Loader.Loader_Tick(Object sender, EventArgs e) at GTA.Script.TryTick() at GTA.Script.DoTick() at GTA.ScriptThread.OnTick() 2015-10-25 03:07:13 - Direct3D device lost! 2015-10-25 03:07:13 - SCRIPTS TERMINATED! LCPDFR [INFO - 3:06:19 AM] [Log] Started [INFO - 3:06:19 AM] [Main] Main: Initializing... [INFO - 3:06:19 AM] [Main] Main: LCPDFR Engine (C) 2011-2013 LMS [INFO - 3:06:19 AM] [Main] Main: DO NOT USE THIS WITHOUT PERMISSION. YOU MAY NOT SHARE, MODIFY OR DECOMPILE THIS FILE. [ERROR - 3:06:22 AM] [] System.BadImageFormatException: Could not load file or assembly 'AdvancedHook.dll' or one of its dependencies. is not a valid Win32 application. (Exception from HRESULT: 0x800700C1) File name: 'AdvancedHook.dll' at .() at .() in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Scripting\Entities\PoolUpdaterUnmanaged.cs:line 117 at ..ctor() in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Scripting\Entities\PoolUpdaterUnmanaged.cs:line 14 at LCPD_First_Response.Engine.Main.() in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Main.cs:line 162 at LCPD_First_Response.Engine.Main.() in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Main.cs:line 222