id summary reporter owner description type status milestone component version severity resolution keywords cc 9413 boost::ipc::message_queue does not support 32 process communicate with 64 process huyuguang Ion Gaztañaga "The win_msg_hdr_t, msg_hdr_t, win_mq_hdr_t, mq_hdr_t use typedef typename boost::make_unsigned::type size_type; The sizeof(size_type) is 32 in 32 bit process and 64 in 64 bit process. So when a 32 bit process want to communicate with a 64 bit process, the sizeof(msg_hdr_t) is not equal, which would cause process crash. Now I " Bugs closed To Be Determined interprocess Boost 1.54.0 Problem invalid