http://bugs.winehq.org/show_bug.cgi?id=20336
--- Comment #2 from Dan Kegel dank@kegel.com 2009-10-12 17:14:50 --- The other consumer of that ioctl is winecfg/drive.c, but it always calls with a "big" buffer (1024 bytes), so it doesn't try out the STATUS_MORE_ENTRIES code, either.