I have also gotten the latest cvs snapshot to build fine so long as I use the 1.52 version of jk_channel_socket.c. Both this and the 4.1.27-based isapi_redirector2.dll are available at the link below. If they work, this should give us access to most of the latest bug fixes until the next official release. http://web.bvu.edu/staff/david/tcservcfg/isapi.html