I need to run a batch file on the BIOS of a computer that has no floppy drive. I got out my MSDOS ISO, then using MagicISO I added my 3 files (a batch file, an executable, and a data file). I burnt the CD, and Windows XP confirms when browsing the CD that a TOTAL of 43 files are present. I boot to the CD on the other computer successfully - however the DIR command only lists 40 files, as if the extra 3 were never even added. I KNOW they're on the CD, but can't understand why MSDOS is IGNORING this fact. I've tried using a different ISO editor, but to no avail - I can't add any files that DOS will recognise.

I was thinking that perhaps there is a directory file containing all the data on the CD that will need updating to include my new files? I'm stumped. Thanks for any help.Set the machine in question to show hidden and system files. If it is not bootable without the CD, make sure none of the files that you BURNED have these attributes set. If they do, you will need to make a new CD with the attributes removed before you burn them.Thanks for the quick response - I've just tried the DIR /A command and it's listed a total of 43 files. I've tried clicking File Properties for each file in UltraISO (I'm using instead of MagicISO since Magic had a trial), and it says none of my 3 files has the hidden attirbute. How WOULD I go about changing whatever attribute these files have for my new disc? Is it impossible to run these files as long as they have this attribute attached?I would suggest burning the files seperately instead of part of the ISO. Once you are booted into DOS the executables will run from the CD.Do you mean burn the files to a separate CD, load up MSDOS with the first CD and then replace it with the second CD and run the batch file? I've tried this and it returned the error of not being able to read the media. As for burning the files to the same CD as the ISO - none of my writing software allows this - it's either a compilation of files or just the ISO that can be burned.