Hi, We are serializing an object to a string and then we want to send it to another process using MQ. When received, it's deserialized and the original object is reconstructed again. We are trying to use message_queue from Boost Interprocess but we still having some troubles sending String messages. (I've been noticed about the boost examples using integers) The first issue is about std::string. I read on boost documentation that MQ do not works with std::string so my first attempt was to use boost::interprocess:string. However, I've received library error while trying to use interprocess::string, so I tried to use std::string and mysteriously it worked fine. After we change the application to another machine with the same configuration, it didn't work again, so I guessed that's the clue why std::string is not guarantee to work in all cases. My question is, what should be the right way to transmit a string message using MQ? Thanks in advance, Julian Magnone