I downloaded an MS-DOS 6.22 Bootable CD Image I used MagicISO to merge in my additional files, and burn the CD. Here is the puzzle: 1. I can examine the resulting (MS-DOS 6.22 + new files) CD-ROM from Windows XP - it has the new files on it. 2. With when I boot the CD-ROM, MS-DOS 6.22 boots up OK, but there is no sign of the new files. p.s. if I get this working, I want to modify the AUTOEXEC.BAT to run an executable (I'll look for next, or I'm open to advice on how to create it) to automatically reboot the computer. (I'm trying to get it into a reboot loop for testing a hardware issue.)

Why not first enlighten us with what you are trying to do? Whatever you do in DOS will not work in Windows XP especially if the file system is NTFS. i_Xp/VistaUser

I want to put the computer into a "reboot loop" (to test a hardware issue, random freezing even during RAM testing); I want the PC to restart automatically when it boots to the CD drive, again and again and again.

Did you check to see if the files are in another directory? Or are hidden? If all else fails, just copy the dos cd to a folder on your hard drive, add the additional files and then burn a new bootable cd.

are the file names correct for dos 6.22 ?