China DOS Union

Please clarify the specific requirements or provide more context. As it stands, the current content is just a question about how to make a USB boot program in DOS and related configurations. If you need a more detailed translation or further processing, please provide more specific instructions. But based on the current information, the translated text is as follows:

Please ask how to make a USB boot program in DOS. DOS can recognize USB. How to write in config.sys and rutoexec.bat. Thanks

Edit in CONFIG.SYS as follows:
device=c:\dos\himem.sys
deivce=c:\dos\usbaspi.sys
device=c:\dos\di1000dd.sys
dos=high
Among them, USBASPI.SYS and DI1000DD.SYS are the driver programs for USB flash drives under DOS.

USBASPI.SYS and DI1000DD.SYS are the driver programs for USB drives under DOS.

Where can I find these programs?

I'm using a virtual machine.

After booting MS-DOS 6.22, in the boot menu that appears, in addition to the original option to boot from CDROM, I need to add two boot items: boot from USB and boot from USB and CDROM. The DOS system also needs to be able to recognize the USB drive, that is, it can be used when the USB drive is plugged in.

Thank you.

Here, flipping through previous posts, it's easy to find these two files.