http://bugs.winehq.org/show_bug.cgi?id=28004
--- Comment #5 from Juan Lang juan_lang@yahoo.com 2011-08-06 20:34:39 CDT --- Yup. A wireshark trace of the exchange shows that the server only includes its own certificate in the exchange, and the client sends an error with the message "Unknown CA" and resets the connection. I'll have to look at what native wininet does differently.