The correct reference is here:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/getfileattributesex.aspGetFileAttributesEx() is quite different from GetFileAttributes().
It is supported in Win98 and higher only.
The GetFileAttributesEx() function is translated to GetFileAttributesExA() or GetFileAttributesExW() depending on whether it is in the ANSI or Unicode locale.
Windows NT: Requires version 4.0 or later.
Windows: Requires Windows 98 or later.
Windows CE: Unsupported.
Header: Declared in winbase.h.
Import Library: Use kernel32.lib.
Unicode: Implemented as Unicode and ANSI versions on Windows NT.
Windows 95 users are out of luck I think.