Dear all, I've upgraded from 1.39 to 1.41 and now I've got an error when compiling. error C2711: 'boost::detail::future_waiter::all_futures_lock::all_futures_lock' : this functon cannot be compiled as managed, consider using #pragma unmanaged 1> #pragma unmanaged is in effect 1> C:\Kadeo\Dev9\Thirdparty\boost_1_41_0\boost/thread/ future.hpp(411) : see source of the previous compiler diagnostic 1>C:\Kadeo\Dev9\Thirdparty\boost_1_41_0\boost/thread/future.hpp (416) : error C3821: 'boost::detail::future_waiter::all_futures_lock::all_futures_lock (std::vector<_Ty> &)': managed type or function cannot be used in an unmanaged function 1> with 1> [ 1> _Ty=boost::detail::future_waiter::registered_waiter 1> ] My dll is compiled with /clr flag, but i put #pragma unmanaged before include the boost header files. Does anyone have a solution for that problem. Regards, Dominique