RE: http://lists.boost.org/boost-users/2007/11/31965.php I don't see any public answer to this. What is the best solution. On another site, someone recommended: #define WIN32_LEAN_AND_MEAN And/or #define _WINSOCKAPI_ However, this solution did not work for me. Has anyone solved this problem? Thanks in Advance, Joseph [brand new to this list] The preceding e-mail message (including any attachments) contains information that may be confidential, or constitute non-public information. It is intended only for the designated recipient. If you are not the named addressee, you should not disseminate, distribute or copy this e-mail. If you have received this e-mail by mistake, please notify the sender immediately by replying to this message and delete this e-mail from your system. Use, dissemination, distribution or reproduction of this message by unintended recipients is not authorized and may be unlawful.