Error, when cleaning up xp with nlite, i took out as much as i thought i could get away with which left me with a 500mb xp...and when i burned the iso boot disk to cd rom I am getting an error right at the beginning of the xp install of:

setupdd.sys not found error code 18.

After reading about this for awhile on the internet i have found that general with this error people get code 4 or 7 which refers to a problem with the ram. Now my computer will boot just fine without this cd on the fat xp platform but why am i getting this error when trying with nlite?