[eluser]xwero[/eluser]
I'm not that familiar with hooks. But i think if you use the post_controller_constructor hook you should be able to call autoloaded libraries using the get_instance function.
[eluser]Mark van der Walle[/eluser]
What about autoloading a library and in the constructor call the function you need to run? It depends a bit on what the function is supposed to do.