http://bugs.winehq.org/show_bug.cgi?id=657
--- Comment #67 from Alexandre Julliard julliard@winehq.org 2010-09-04 05:26:16 CDT --- If you write similar code accidentally that's fine. If you write similar code because you have seen the MS source that's a copyright violation.
Anyone who plans to work on the mfc implementation in the future should stay far away from the MS source, and never look at it or even download it.