This looks good Torsten. I have a few minor nits that I am reluctantly polluting this mailing list with. Page 28, line 30 Missing closing parenthesis "(relative to recvbuf)" Page 50, line 18 Missing "and" between blocking and nonblocking Page 55, line 6 Missing closing parenthesis "(relative to sendbuf)" Page 58, line 44 Missing closing parenthesis "(relative to sendbuf)" Page 59, line 6 Missing closing parenthesis "(relative to recvbuf)" Rolf -- ========================= [email protected] 781-442-3043 =========================