(1) There is no such thing as open source software for Windows.
You do not have the source code to the C library, Win32 API,
etc. Windows software is not free.
(2) In an ideal world, nobody would write software for Windows.
The O/S is fundamentally flawed. Writing software for it only
encourages the b.....ds (Microsoft et al).
(3) There are plenty of sites I can go to if I want software for Windows. Keep it off Freshmeat please.