Hello I noticed that pjlib library does not use the IOQueue implementation base on I/O Completion when it is compiled with visual studio 6.0 using pjproject.dsw workspace file: "ioqueue_select.c" is compliled instead of "ioqueue_winnt.c". Are there specific reasons in order to prefer "ioqueue_select.c"? Thank you M. Montevecchi -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100826/0d7745b4/attachment.html>