[Bug 17181] Recursive directory deletion fails for multiple DOS apps; bug in INT21_FindFirst/FindNext?

http://bugs.winehq.org/show_bug.cgi?id=17181

--- Comment #2 from Dan Kegel   2009-01-29 22:42:55 ---
Easiest testcase is
  mkdir testdir
  mkdir testdir/dir1
  mkdir testdir/dir2
  wine rm.com /s testdir
This fails to see dir2, so the delete of testdir fails.

It seems that the rmdir of dir1 messes with FINDNEXT's mind.
FINDNEXT dutifully skips forward dta->count entries to
get back where it was... but that's one too far now.
rmdir dir1 has to decrement dta->count somehow if 
dir1 is before the mark.  Fun!