recording dll APIs and then mimicking it

Is there some tool that can record APIs in some c++ dll , and then playbac开发者_如何学编程k them .

At our costumer site we have a machine with some vendor software that exposes it's functionality . We wanted to record that dll and then mimic it back at the office .

Any idea how We can do that ?

Thanks for help.

You can start with Detours or its open-source equivalent EasyHook. Your hook function can log the activity, and then back at the office you can write a replacement DLL that replays the activity.