Hello Maintainers (Nanang / Benny) Is the (high performance) IOCP support in the Win32 build dropped (for 2.x-branch)? The files are still there (ioqueue_winnt.c) and available in the solution, but when enabled it not build-able due to recently introduced group lock feature. This question has actually already be asked by two others people: - http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2014-December/018025.html - http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2014-September/017829.html The IOCP-build is used by higher volume users on Windows platform, where IOCP is much more efficient compared to the select() method. Any feedback is HIGHLY appreciated... With regards, EiSl