I want to make a registry filter driver specifically for Windows XP. I know there is an example in the official WinDDK but it only works on Windows 7.
Is it even possible to develop a registry filter driver for windows xp ? Any kind of code/pointers will be highly appreciated.
You can also hook the registry API functions using Microsoft Detours (or similar package). This is no easy task to get correct (still finding the bugs) but if you are up for writing drivers then this is no different in complexity. Just less blue screens. Look at hooking the Nt or Zw functions in ntdll.