不难...用现成的吧
XUSBOOT 超普DOS工具盘 专业版 V3.00 Professional 2006.06.27
http://www.cn-dos.net/forum/viewthread.php?tid=15759&fpage=1&highlight=%E8%B6%85%E6%99%AE
六、支持项目
1、支持各类分区读写：FAT、FAT隐藏、NTFS、及Linux Ext2/Ext3。
2、支持各种设备驱动：CD、USB、SCSI、IEEE1394、PCMCIA等。
3、支持解压RAR、ZIP、ARJ、UHA压缩文件及支持释放IMG类型的映像文件。
4、支持ISO虚拟光盘文件加载(LOADISO)或启动(ISOEMU)。
Not difficult... Just use the ready-made one
XUSBOOT Super Common DOS Tool Disk Professional Edition V3.00 Professional 2006.06.27
http://www.cn-dos.net/forum/viewthread.php?tid=15759&fpage=1&highlight=%E8%B6%85%E6%99%AE
VI. Supported Items
1. Supports reading and writing of various partitions: FAT, FAT hidden, NTFS, and Linux Ext2/Ext3.
2. Supports various device drivers: CD, USB, SCSI, IEEE1394, PCMCIA, etc.
3. Supports decompression of RAR, ZIP, ARJ, UHA compressed files and supports extracting IMG type image files.
4. Supports ISO virtual CD file loading (LOADISO) or booting (ISOEMU).