API Unhook module

I need an application which will unhook all the apis hooked by any one including drivers using any of such techniques as in <[login to view URL]> This may be used by stand alone application or by any anti-virus program to unhook apis hooked by viruses . Please read <[login to view URL]> . Most important of all is when CALL is patched in memory, we need to replace patch with the correct address of the original file. We are also concerned with the dll injection where we want to remove the injected code from dll in memory. We know how to prevent our processes from such issues but outhere we are concerned about system files, unhooking them and removing dll injection. ----------------------------------------------- I can give you samples if you want. To sum it up you are required to write code which will do the following: 1. unhook hooked functions in memory 2. unload a given dll from all process . .