http://bugs.winehq.org/show_bug.cgi?id=27337
--- Comment #1 from Hans Leidekker hans@meelstraat.net 2011-05-30 10:54:00 CDT --- Created an attachment (id=34965) --> (http://bugs.winehq.org/attachment.cgi?id=34965) iphlpapi: Fix socket leak in IcmpCloseHandle.
Try this patch.