[rawr]

I am very pleased to see a legitimate post about hacking on Hacker News. Well played, sir.

I have similar feelings about Detours. Microsoft Research is in their own little world sometimes.

[daeken]

On the subject of Detours, I suggest checking out EasyHook: http://www.codeplex.com/easyhook

It's under a free license, lets you write hooks not only from C/C++, but also from any .NET language (architecture-independent). It makes any sort of API hooking a breeze.

Edit: Forgot to mention, it automatically sets up a remoting channel for you. That way, you can do IPC between your hooking application and the hookee trivially.