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LoadDLLViaAppInit 64-bit

19
Oct
2011

Many of my security tools are DLLs. If you want to use these tools inside a 64-bit process, you’re stuck, because you can’t use 32-bit DLLs inside a 64-bit process (and vice versa).

LoadDLLViaAppInit is a tool I released to load DLLs inside selected processes. If you want to use this 32-bit version of LoadDLLViaAppInit on a 64-bit Windows machine, you need to configure AppInit_DLLs in this registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Windows

You also need to copy LoadDLLViaAppInit.dll in this directory: C:\Windows\SysWOW64

Today I’m releasing a 64-bit version of LoadDLLViaAppInit: LoadDLLViaAppInit64.dll. This will help you to load DLLs inside 64-bit processes.

This 64-bit version has to be installed and configured just like its 32-bit version on a 32-bit OS: you copy the DLL in directory C:\Windows\System32 and you configure the registry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows

The configuration file is LoadDLLViaAppInit64.bl.txt.

This 64-bit version has only been tested on 64-bit Windows, not on 64-bit XP neither on 64-bit Windows Server. I expect it to work on these systems too, but you need to test first. I’ve also compiled this 64-bit version with Visual Studio 2010 and an option to include the runtime Visual C++ libraries inside the DLL, so you don’t need to install the Microsoft Visual C++ 2010 Redistributable Package. But this option has a drawback: when Microsoft releases a patch for the libraries, I (or you) will have the recompile the DLL with the new version of the libraries.

LoadDLLViaAppInit64_V0_0_0_1.zip (https)
MD5: 94C38717690CE849976883FFE4B22CA1
SHA256: 447C8F61A6398CBE6BD5E681FCE28C55D426D4E4EA49BBE367AE5B334B073A55

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