[boost] About timedlock....

Hi, I want to port program from vc.net to evc4, but the method timedlock has some problem on evc4..... error message as below: boost/thread/detail/lock.hpp(44) : error C2143: syntax error : missing ',' before '&' it seems that wince doesn't support the method timedlock.. I have no idea how to deal with it? Any suggestion? Best Regards.