Re: [Boost-users] Asio - Errors

First-chance exception at 0x76b442eb in Chatter.exe: Microsoft C++ exception: boost::system::system_error at memory location 0x0012e774..

What message and the code of the system_error you've got? Probably, it will explain the reason of the error. By the way, most of the asio functions have no-throw version that gets error_code& as a paramter and fills it in case of error.