Microsoft Changed the Win32_Find_Data Declaration and Added 3 New Properties

The current microsoft docmentation shows the following declaration for the WIN32_FIND_DATA structure:

typedef struct _WIN32_FIND_DATAA {
  DWORD    dwFileAttributes;
  FILETIME ftCreationTime;
  FILETIME ftLastAccessTime;
  FILETIME ftLastWriteTime;
  DWORD    nFileSizeHigh;
  DWORD    nFileSizeLow;
  DWORD    dwReserved0;
  DWORD    dwReserved1;
  CHAR     cFileName[MAX_PATH];
  CHAR     cAlternateFileName[14];
  DWORD    dwFileType;
  DWORD    dwCreatorType;
  WORD     wFinderFlags;
} WIN32_FIND_DATAA, *PWIN32_FIND_DATAA, *LPWIN32_FIND_DATAA;

My personal knowledge of the declaration is:

typedef struct _WIN32_FIND_DATA {
  DWORD    dwFileAttributes;
  FILETIME ftCreationTime;
  FILETIME ftLastAccessTime;
  FILETIME ftLastWriteTime;
  DWORD    nFileSizeHigh;
  DWORD    nFileSizeLow;
  DWORD    dwReserved0;
  DWORD    dwReserved1;
  TCHAR    cFileName[MAX_PATH];
  TCHAR    cAlternateFileName[14];
} WIN32_FIND_DATA, *PWIN32_FIND_DATA, *LPWIN32_FIND_DATA;

Microsoft added these 3 new properties:

  DWORD    dwFileType;
  DWORD    dwCreatorType;
  WORD     wFinderFlags;

The current Microsoft documentation don't have any description for these properties.

Does anyone have some information about the new properties?

Some other questions:

• Which declaration should a dev use now? The old or new style?
• What about the backward compatibility with older Windows versions?