public static extern long FileTimeToSystemTime( ref FILETIME FileTime, ref SYSTEMTIME SystemTime );
public static extern long FileTimeToSystemTime( ref UInt64 FileTime, ref SYSTEMTIME SystemTime );
public static extern long FileTimeToSystemTime( ref FILETIME FileTime, ref SYSTEMTIME SystemTime );
public static extern long FileTimeToSystemTime( ref UInt64 FileTime, ref SYSTEMTIME SystemTime );