https://bugs.winehq.org/show_bug.cgi?id=38165
--- Comment #2 from Bruno Jesus 00cpxxx@gmail.com --- I can see it, the application quits waiting for a response from the server and calls closesocket, then it tries once more to poll the socket using select(). Obviously select returns error because the socket no longer exists. Then the application calls closesocket again, and select again... Forever. The simplest hack possible is to block UDP socket creation (or all socket creation).