http://bugs.winehq.org/show_bug.cgi?id=30815
--- Comment #5 from Bruno Jesus 00cpxxx@gmail.com 2012-06-01 06:42:11 CDT --- I read somewhere I can't remember now that you need to WSAEnumProtocols and pick the first one (possibly SOCK_STREAM as you did). I'll try to find this information again.