Get access to MS-DOS from within Windows. Change your directory to C:\BCD. Then execute the makeiso command file. This file contains one single line with the following command:
mkisofs -o bering.iso -b isolinux.bin -c isolinux.cat -no-emul-boot -boot-load-size 4 -boot-info-table -hide isolinux.cat -hide isolinux.bin -l diskcontent
You should now have a bering.iso CD-Rom image
in C:\BCD. You can now create your Bering CD from
this ISO image with your favorite CD burner program.
Change your BIOS settings to declare your CD-Rom as the first boot device. You should be all set.
It is of course much better to test your Bering CD with a CD-RW :-). But be aware that a lot of "old" CD drives just won't be able to read them. The CD-RW will be used for testing on a recent machine. Once you are happy with your image you will have to burn a traditionnal CD-Rom for your old i486-based Bering router :-)