64bit and 32bit process intercommunication boost::message_queue?

I think this is about the portability of offset_ptr used in message_queue to point to each message, including the header mutex. 32-/64-bit interoperability should be supported since Boost 1.48.0, as addressed in https://svn.boost.org/trac/boost/ticket/5230 .

I've spent my whole workday figure out the solution and finally I made it work. The solution is partially what James provided, so I used the interop_message_queue on both the 32-bit and the 64-bit processes.