http://bugs.winehq.org/show_bug.cgi?id=4464
------- Additional Comments From ivg2@cornell.edu 2006-05-02 01:36 ------- It was my understanding that those are part of the DirectX SDK, which Microsoft distributes. This is not code that app developers write themselves.
Anyway, the applications do distribute those dlls, but in a way that does not get installed correctly on Wine, and with legal restrictions.
Wine could implement those dlls. I recall Raphael saying that it wouldn't be very hard. (I'm not volunteering here, just want to point out the issue, since no one replied to my message about this on wine-devel).