DOSLFN早就有了0.40c版了（比如
MS-DOS 7.10标准启动盘中就有），甚至0.40d测试版都非公开发布了，所以如只是想更新到之前的0.40b版的话恐怕并不妥也没有必要；而QHIMEM目前还在不断修改更新中，所以最好等更稳定一点的时候再正式采用。而且要注意一点，DOS完整版与启动盘不同，前者应该比较正式，应尽量使用的是原始软件，除非确实有需要尽量不要带有其它外部软件。因此它不能直接与DOS启动盘相比，除非是如上所提到的特别安装版本。
DOSLFN already has version 0.40c (for example, it is included in
MS-DOS 7.10 Standard Boot Disk), and even the 0.40d test version is not publicly released. So if you just want to update to the previous version 0.40b, it may not be appropriate and is not necessary; and QHIMEM is still being continuously modified and updated, so it is best to wait until it is more stable before formally adopting it. Also, note that the full version of DOS is different from the boot disk. The former should be more formal, and original software should be used as much as possible. Unless there is a real need, other external software should not be included. Therefore, it cannot be directly compared with the DOS boot disk, unless it is the specially installed version as mentioned above.
