http://bugs.winehq.org/show_bug.cgi?id=14334
--- Comment #24 from Dan Kegel dank@kegel.com 2009-02-11 08:24:24 --- http://www.internals.com/articles/apispy/apispy.htm has some references. You can download one tool, apispy32, from http://www.wheaty.net I haven't tried it (lately) so I don't know how well it works.