Re: [Boost-users] [ASIO] Where to use CoInitizeEx

void io_worker_thread(void) { #if (WIN32)  CoInitializeEx(NULL, COINIT_APARTMENTTHREADED); #endif

 io_service.run();

#if (WIN32)  CoUninitialize(); #endif };

EXTERN_C EUROATLIB_API TETRAMotoHndl CALL GetTETRAMotoObj() {  ....  // run the IO service as a separate thread

 //io_service_thread.reset(  //  new boost::thread(  //     boost::bind(&boost::asio::io_service::run, &io_service)  //   )  //);

 io_service_thread.reset(new boost::thread(io_worker_thread));

 ... };

You forgot you to pass the io_service to the io_worker_thread.