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The Minimalistic x86/x64 API Hooking Library for Windows

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I need some funds to continue developing this library. All contributions gratefully accepted.

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Version history

  • v1.3.3 - 8 Jan 2017

    • Added a helper function MH_CreateHookApiEx. (Thanks to asm256)
    • Support Visual Studio 2017 RC.
  • v1.3.2.1 - 9 Nov 2015 (Nuget package only)

    • Fixed an insufficient support for Visual Studio 2015.
  • v1.3.2 - 1 Nov 2015

    • Support Visual Studio 2015.
    • Support MinGW.
  • v1.3.2-beta3 - 21 Jul 2015 (Nuget package only)

    • Support MinGW. (Experimental)
  • v1.3.2-beta2 - 18 May 2015

    • Fixed some subtle bugs. (Thanks to RaMMicHaeL)
    • Added a helper function MH_StatusToString. (Thanks to Jan Klass)
  • v1.3.2-beta - 12 May 2015

    • Fixed a possible thread deadlock in x64 mode. (Thanks to Aleh Kazakevich)
    • Reduced the footprint a little more.
    • Support Visual Studio 2015 RC. (Experimental)
  • v1.3.1.1 - 7 Apr 2015 (Nuget package only)

    • Support for WDK8.0 and 8.1.
  • v1.3.1 - 19 Mar 2015

    • No major changes from v1.3.1-beta.
  • v1.3.1-beta - 11 Mar 2015

    • Added a helper function MH_CreateHookApi. (Thanks to uniskz).
    • Fixed a false memory leak reported by some tools.
    • Fixed a degradated compatibility issue.
  • v1.3 - 13 Sep 2014

    • No major changes from v1.3-beta3.
  • v1.3-beta3 - 31 Jul 2014

    • Fixed some small bugs.
    • Improved the memory management.
  • v1.3-beta2 - 21 Jul 2014

    • Changed the parameters to Windows-friendly types. (void* to LPVOID)
    • Fixed some small bugs.
    • Reorganized the source files.
    • Reduced the footprint a little more.
  • v1.3-beta - 17 Jul 2014

    • Rewrote in plain C to reduce the footprint and memory usage. (suggested by Andrey Unis)
    • Simplified the overall code base to make it more readable and maintainable.
    • Changed the license from 3-clause to 2-clause BSD License.
  • v1.2 - 28 Sep 2013

    • Removed boost dependency (jarredholman).
    • Fixed a small bug in the GetRelativeBranchDestination function (pillbug99).
    • Added the MH_RemoveHook function, which removes a hook created with the MH_CreateHook function.
    • Added the following functions to enable or disable multiple hooks in one go: MH_QueueEnableHook, MH_QueueDisableHook, MH_ApplyQueued. This is the preferred way of handling multiple hooks as every call to MH_EnableHook or MH_DisableHook suspends and resumes all threads.
    • Made the functions MH_EnableHook and MH_DisableHook enable/disable all created hooks when the MH_ALL_HOOKS parameter is passed. This, too, is an efficient way of handling multiple hooks.
    • If the target function is too small to be patched with a jump, MinHook tries to place the jump above the function. If that fails as well, the MH_CreateHook function returns MH_ERROR_UNSUPPORTED_FUNCTION. This fixes an issue of hooking the LoadLibraryExW function on Windows 7 x64 (reported by Obble).
  • v1.1 - 26 Nov 2009

    • Changed the interface to create a hook and a trampoline function in one go to prevent the detour function from being called before the trampoline function is created. (reported by xliqz)
    • Shortened the function names from MinHook_* to MH_* to make them handier.
  • v1.0 - 22 Nov 2009

    • Initial release.
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