Ion, We've spoken earlier about a couple of bugs an associate and I found in the shmem library and I was wondering if you had any suggestions for an interesting problem I've encounterd. My current project requires that my use of the shared memory segment that we're using be selectable with either select or poll, which in effect means that the segment (or portions of it) need to have file descriptor associated with it. I know of ways that I can hack this by sending the file descriptor outside of the shmem segment and maintaing a fake file for each portion of shmem that I need to access but I was wondering if you (or any other boost list members) know of a better way to do this using the boost::shmem functionality. Thank you for your time, Paul Ryan SAIC - Tactical Systems