I have saved setup old files for MS DOS 6.22 on my hdd & now want to create MS DOS discs but when running the setup.exe it is asking for A: floopy disc & I don’t have floppys anymore??? I tried to create CD ROM by copying the same files into NERO but it will still ask to create floppy disc. How can I use the old MS DOS 6.22 files to run from CD ROM ???