static extern bool CoFileTimeToDosDateTime(

    private static extern int FileTimeToDosDateTime(ref UInt64 fileTimeInfo, out ushort dateValue, out ushort TimeValue);

        result = FileTimeToDosDateTime(ref data, out dateValue, out timeValue);

static extern bool FileTimeToDosDateTime([In] ref FILETIME lpFileTime,

        FileTimeToDosDateTime(ref ft, out dosDate, out dosTime);