[Boost-users] [thread] windows.h threads and boost.thread can work together?

Hi everyone. In an existing and large visual c++ application, I want to port threads from windows.h ones (CreateThread function) to boost.thread. Due to the size of the application I must do it progressively, so it means, during a while, the coexistence of windows threads with boost threads. Is it a bad idea? Can they work together? Threads here are synchronized by events and critical sections which also I want to port to boost Condition Variables and Mutexes. I'm using a visual C++ 2008, with win32. Thank you in advance, Marta.