比如说，只能用光盘启动、刷BIOS的情况下，使用ultraiso将相应历目录拖入，保存，记录。启动后退出安装，进入C盘，就能看到目录，进行刷新了。 最小分是1，没法再小了。

split_dos

MS－DOS.6.22.软盘镜像。

Diskgen_DOS

原始的总是最好的，dos下的启动盘，杀毒什么的相当的有效，不进入操作系统，直接删除病毒文件。

This is the floppy boot disk of MSDOS6.0

太全面了，要什么有什么！ 保证全部的源代码！ 包含制作成DOS安装程序的源代码！

To build the operating system, a batch file (BUILD.BAT) is included to make life easier. This file is in the dos-c directory of the distribution. In addition, there is a corresponding batch file (CLEAN.BAT) to clean up the source directories. If you feel hardy, read on to understand the directory structure. A more complete description of the build environment is contained ina companion book, "The FreeDOS Kernel" (ISBN: 0-87930-436-7) published by R&D Books, an imprint of Miller Freeman of Lawrence, Kansas (USA) and distributed in the USA and Canada by Publishers Group West. See the file README.TXT for more details. Directory Structure ------------------- dos-c root directory +-----dist holds image of distribution disk +-----doc documentation directory +-----hdr common *.h files +-----lib LIBM.LIB and DEVICE.LIB +-----src source directories for: +--------+-----boot boot.bin +--------+-----command COMMAND.COM and HELP.EXE +--------+-----drivers DEVICE.LIB +--------+-----fs common kernel and ipl fs manage files +--------+-----ipl IPL.SYS +--------+-----kernel KERNEL.EXE +--------+-----misc miscellaneous files for kernel and ipl +--------+-----tmp +--------+-----utils SYS.EXE

DOS操作系统源代码，不解释了，DOS虽然已经过时了，但是参考价值还是蛮大的，不过里面很多用汇编写的，需要阅读者有很好的汇编功底

[MS-DOS.rar] - 微软的早期DOS操作系统的完整源代码 [MS-DOS.rar] - 微软的早期DOS操作系统的完整源代码