[Asi loader] Using dsound
[ScriptHookDotNet] Found
[ScriptHookDotNet] Valid
[System dependencies] Verifying dependencies integrity
[System dependencies] Checking MSVCR110.DLL
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Check passed
[System dependencies] Checking MSVCP110.DLL
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved MSVCR110.dll to C:\Windows\SysWOW64\MSVCR110.dll
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Check passed
[System dependencies] Checking MSCOREE.DLL
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Check passed
[System dependencies] Checking SCRIPTHOOK.DLL
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Resolved USER32.dll to C:\Windows\SysWOW64\USER32.dll
[System dependencies] Check passed
[System dependencies] Checking MSVCR100.DLL
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Check passed
[System dependencies] Checking D3DX9_43.DLL
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved msvcrt.dll to C:\Windows\SysWOW64\msvcrt.dll
[System dependencies] Resolved GDI32.dll to C:\Windows\SysWOW64\GDI32.dll
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Resolved ADVAPI32.dll to C:\Windows\SysWOW64\ADVAPI32.dll
[System dependencies] Check passed
[System dependencies] Checking ScriptHookDotNet.asi
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Resolved ScriptHook.dll to C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto IV\GTAIV\ScriptHook.dll
[System dependencies] Resolved MSVCR100.dll to C:\Windows\SysWOW64\MSVCR100.dll
[System dependencies] Resolved USER32.dll to C:\Windows\SysWOW64\USER32.dll
[System dependencies] Resolved d3dx9_43.dll to C:\Windows\SysWOW64\d3dx9_43.dll
[System dependencies] Resolved mscoree.dll to C:\Windows\SysWOW64\mscoree.dll
[System dependencies] Check passed
[System dependencies] v2.0.50727  2.0.50727.4927  SP2
v3.0  3.0.30729.4926  SP2
v3.5  3.5.30729.4926  SP1
v4  
  Client  4.5.51641
  Full  4.5.51641
v4.0  
  Client  4.0.0.0
[System dependencies] The .NET Framework version 4.5.1 is installed (Windows 8.1)
[System dependencies] Checking ADVANCEDHOOK.DLL
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved ScriptHook.dll to C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto IV\GTAIV\ScriptHook.dll
[System dependencies] Resolved VERSION.dll to C:\Windows\SysWOW64\VERSION.dll
[System dependencies] Resolved PSAPI.DLL to C:\Windows\SysWOW64\PSAPI.DLL
[System dependencies] Resolved dbghelp.dll to C:\Windows\SysWOW64\dbghelp.dll
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Resolved USER32.dll to C:\Windows\SysWOW64\USER32.dll
[System dependencies] Resolved SHELL32.dll to C:\Windows\SysWOW64\SHELL32.dll
[System dependencies] Resolved MSVCR110.dll to C:\Windows\SysWOW64\MSVCR110.dll
[System dependencies] Resolved MSVCP110.dll to C:\Windows\SysWOW64\MSVCP110.dll
[System dependencies] Resolved mscoree.dll to C:\Windows\SysWOW64\mscoree.dll
[System dependencies] Check passed
[System dependencies] Checking ADVANCEDHOOKINIT.ASI
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved VERSION.dll to C:\Windows\SysWOW64\VERSION.dll
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Resolved USER32.dll to C:\Windows\SysWOW64\USER32.dll
[System dependencies] Resolved MSVCR110.dll to C:\Windows\SysWOW64\MSVCR110.dll
[System dependencies] Resolved MSVCP110.dll to C:\Windows\SysWOW64\MSVCP110.dll
[System dependencies] Check passed
[System dependencies] Checking SLIMDX.DLL
[System dependencies] Checking dependencies (32-bit required: True)
[System dependencies] Resolved MSVCR100.dll to C:\Windows\SysWOW64\MSVCR100.dll
[System dependencies] Resolved KERNEL32.dll to C:\Windows\SysWOW64\KERNEL32.dll
[System dependencies] Resolved ole32.dll to C:\Windows\SysWOW64\ole32.dll
[System dependencies] Resolved USER32.dll to C:\Windows\SysWOW64\USER32.dll
[System dependencies] Resolved GDI32.dll to C:\Windows\SysWOW64\GDI32.dll
[System dependencies] Resolved WINMM.dll to C:\Windows\SysWOW64\WINMM.dll
[System dependencies] Resolved ADVAPI32.dll to C:\Windows\SysWOW64\ADVAPI32.dll
[System dependencies] Failed to resolve MSVCP100.dll from C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto IV\GTAIV\SLIMDX.DLL
[System dependencies] Resolved mscoree.dll to C:\Windows\SysWOW64\mscoree.dll
[System dependencies] Check passed
[System dependencies] No problems found
[LCPD First Response] Checking LCPDFR installation
[LCPD First Response] No problems found
[Log Check] Checking log files
[Log Check] asilog.txt seems okay
[Log Check] ScriptHookDotNet.log lists one or more errors
[Log Check] 2015-05-21 04:23:36 - Initializing ScriptHookDotNet v1.7.1.7 BETA (on GTA IV version 1.0.7.0 with C++ Hook version 0.5.1)
2015-05-21 04:24:14 - Direct3D device created!

2015-05-21 04:24:15 - SEARCHING FOR SCRIPTS...
2015-05-21 04:24:15 - Loading scripts in Assembly 'scripts\LCPDFR Loader.net.dll' ...
2015-05-21 04:24:15 -  ...found script 'LCPDFR_Loader.Loader'!
2015-05-21 04:24:15 -  ...found script 'LCPDFR_Loader.PublicScript'!
2015-05-21 04:24:15 - DONE! 2 valid scripts found!

2015-05-21 04:24:15 - STARTING SCRIPTS...
2015-05-21 04:24:15 - INFO: Phone number checks are not available!
2015-05-21 04:24:15 -  ...successfully started script 'LCPDFR_Loader.PublicScript'!
2015-05-21 04:24:15 -  ...successfully started script 'LCPDFR_Loader.Loader'!
2015-05-21 04:24:16 - Error during Tick in script 'LCPDFR_Loader.Loader':
                      System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object.
                         at LCPD_First_Response.Engine.Main.‎‏‌​‌‬‏​‎‍‏‮‬‎‌‭‮‏‪‎‪‌‮‭‭‫​‬‍‌‎‮() in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Main.cs:line 244
                         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()
2015-05-21 04:24:34 - Direct3D device lost!
2015-05-21 04:24:34 - SCRIPTS TERMINATED!

[Log Check] LCPDFR.log doesn't finish initialize
[Log Check] LCPDFR.log lists one or more errors
[Log Check] ------------------------
[INFO - 4:17:03 AM] [Log] Started
[INFO - 4:17:03 AM] [Main] Main: Initializing...
[INFO - 4:17:03 AM] [Main] Main: LCPDFR Engine (C) 2011-2013 LMS
[INFO - 4:17:03 AM] [Main] Main: DO NOT USE THIS WITHOUT PERMISSION. YOU MAY NOT SHARE, MODIFY OR DECOMPILE THIS FILE.
[ERROR - 4:17:04 AM] [] System.IO.FileNotFoundException: Could not load file or assembly 'AdvancedHook.dll' or one of its dependencies. The specified module could not be found.
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

------------------------
[INFO - 4:24:15 AM] [Log] Started
[INFO - 4:24:15 AM] [Main] Main: Initializing...
[INFO - 4:24:15 AM] [Main] Main: LCPDFR Engine (C) 2011-2013 LMS
[INFO - 4:24:15 AM] [Main] Main: DO NOT USE THIS WITHOUT PERMISSION. YOU MAY NOT SHARE, MODIFY OR DECOMPILE THIS FILE.
[ERROR - 4:24:16 AM] [AssemblyHelper] GetTypesInheritingFromTypeInAssembly: Inner exception: Could not load file or assembly 'SlimDX.dll' or one of its dependencies. The specified module could not be found.
[ERROR - 4:24:16 AM] [AssemblyHelper] GetTypesInheritingFromTypeInAssembly: Inner exception: Could not load file or assembly 'SlimDX.dll' or one of its dependencies. The specified module could not be found.
[ERROR - 4:24:16 AM] [AssemblyHelper] GetTypesInheritingFromTypeInAssembly: Inner exception: Could not load file or assembly 'SlimDX.dll' or one of its dependencies. The specified module could not be found.
[ERROR - 4:24:16 AM] [AssemblyHelper] GetTypesInheritingFromTypeInAssembly: Inner exception: Could not load file or assembly 'SlimDX.dll' or one of its dependencies. The specified module could not be found.
[ERROR - 4:24:16 AM] [] System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at ​‏‍‬‍‎‪‮‮‫​‍​‏‌‌‎‌‬‪‮‎‪‫‎‫‎‮.‬‬​‍‎‪‬‫‏‭‫‪‭‪‌‪‭‪‎‫‭‪‌‮() in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Scripting\Plugins\PluginManager.cs:line 32
   at LCPD_First_Response.Engine.Main.‬‬​‍‎‪‬‫‏‭‫‪‭‪‌‪‭‪‎‫‭‪‌‮() in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Main.cs:line 168
   at LCPD_First_Response.Engine.Main.‎‏‌​‌‬‏​‎‍‏‮‬‎‌‭‮‏‪‎‪‌‮‭‭‫​‬‍‌‎‮() in d:\GTA IV\LCPDFR\SVN\trunk\LCPD First Response\Engine\Main.cs:line 222

[Log Check] AdvancedHook.log lists a game crash. This is probably not LCPDFR related.
[Log Check] Log started on: 4:24:15 5-21-2015
------------------------
[INFO - 4:24:15] Gameversion - 1.0.7.0
[INFO - 4:24:15] Data unprotected
[INFO - 4:24:15] Game patched
[INFO - 4:24:15] Xlive protections disabled
[INFO - 4:24:15] Improving ELS compatibility
[INFO - 4:24:15] AdvancedHook 0.38 (C) 2010-2015 LMS - Initialized
[INFO - 4:24:15] E-Mail: lms@lcpdfr.com
[INFO - 4:24:15] Permission granted for LCPDFR & ELS only
[INFO - 4:24:15] Thanks to listener, aru, #iv-modding and cp702
[INFO - 4:24:15] Attaching exception handler...
[INFO - 4:24:15] Exception handler attached
[INFO - 4:24:15] Patching game functions...
[INFO - 4:25:1] An exception occured
[INFO - 4:25:3] Minidump saved
[INFO - 4:25:3] 
Process: FFF70000 

Address: 519346 (Faulting module: C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto IV\GTAIV\GTAIV.exe loaded into process space at 370000 - function offset without PE header is: 1A8346)

Code: C0000005

Registerdump - EAX: 1 EBP: 8406450 EBX: 0 ECX: E365FCE EDI: 191CB84 EDX: 590000 EIP: 519346 ESI: 4 ESP: 1D4E900

Install this: http://www.microsoft.com/en-us/download/details.aspx?id=5555

I already had that but i instakked again and clicked on repair.

Try to install new dll files. If d3dx9_43.dll was not found then find it on http://fix4dll.com/d3dx9_43_dll and istall. Then restart computer and check if something has changed. Good luck!