I've whipped up another version: ftp://starship.python.net/pub/crew/adustman/_asyncore-0.0.1.tar.gz This is not a bug fix; no bugs found yet. It should offer slightly more speed improvement. This version depends on the fact (or at least, I hope it's a fact) that fileno() on an object in the socket_map does not change over time (modifies asyncore.py to store fileno() as the value in socket_map; previously always stored 1 as a placeholder). You will need to undo the patch to asyncore.py from the previous one to apply the new patch (another couple lines, pitiful, really). -- andy dustman | programmer/analyst | comstar.net, inc. telephone: 770.485.6025 / 706.549.7689 | icq: 32922760 | pgp: 0xc72f3f1d "Therefore, sweet knights, if you may doubt your strength or courage, come no further, for death awaits you all, with nasty, big, pointy teeth!"