public static extern bool FileTimeToDosDateTime([In] ref FILETIME lpFileTime, [Out] out ushort lpFatDate, [Out] out ushort lpFatTime);
public static extern bool LocalFileTimeToFileTime([In] ref FILETIME lpLocalFileTime, [Out] out FILETIME lpFileTime);
public static extern bool FileTimeToSystemTime([In] ref FILETIME lpFileTime, [Out] out SYSTEMTIME lpSystemTime);