Hello there, What are the platforms of your applications? Windows32 or linux? What are the c++ compilers (which versions) you are using? I am doing most of my code and test in FedoraCore3&4. Now I am going to start building Channel on win32 using VC++2005 express. Hope i am covering most popular compilers. I am going to post a new version of channel at sourceforge tonight which will include a new "stream" class on top of Boost.Interprocess shmem message queues. So we can connect 2 channels at different processes thru shmem. Plan to add channel connections based on SOAP later. You can find channel's design doc at http://channel.sourceforge.net/boost_channel/doc/design.html. Your comments and corrections will be highly appreciated. Thanks Yigong