Hi I have just found a bug in the HTGuess.c file. In the HTGuess_abort function there is a line: if (me->target) (*me->target->isa->abort)(me,e); It should be obviously: if (me->target) (*me->target->isa->abort)(me->target,e); This bug is in all 4.x versions of wwwlib, also in 4.1b1. It can cause a program crash. I hope you will enjoy this information. ;-) Should I post it also on www-lib@w3.org? Best regards Maciej Puzio puzio@laser.mimuw.edu.pl