http://bugs.winehq.org/show_bug.cgi?id=9787
--- Comment #419 from Mike Kaplinskiy mike.kaplinskiy@gmail.com 2010-06-14 22:29:23 --- Not very actively, mostly because we are in code freeze. Implementing some of these (SIO_GET_EXTENSION_FUNCTION_POINTER) and not others may make some applications misbehave.
I will submit a partially working set for acceptex right after the release. It probably will work well since a lot of apps depend on the "closing accepting handle cancels request" behavior, but it will be a start. To implement that part of AcceptEx we need to restructure server async handling (i.e. 1 async waiting on multiple fd's). I have some patches written but they're not quite clean yet.