Use of CreateFile2 breaks backward compatibility

[megakraken]

Hi,

is there any particular reason why you added the IOWIN32_USING_WINRT_API ifdefs in iowin32.c and replaced calls to CreateFile with calls to CreateFile2? This breaks compatibility with older versions of Windows such as Windows 7.

I understand this can be remedied by simply undefining IOWIN32_USING_WINRT_API. I'm just wondering it it's necessary at all, because functionality-wise CreateFile2 is virtually identical to the older CreateFile function.