Actually, it is simple. There is not boot.bin file, or boot directory on the CD: XPCREATE extracts the (invisible) boot image, and stores it in the BOOT directory where you run XPCREATE. The reason for the original CDs is that there you are sure of a good copy, and I can be sure that noting has gotten screwed up in the process used to copy the original CD. Here is what you should do: Install XPCREATE to an empty directory, do not modify the XPCREATE.INI file, and run it a first time to create the directory structure, and a second time to make your first ISO/CD. After this run, XPCREATE will have extracted your boot image, copied your XP CD to the hard drive, and done it's thing. Work from there adding your user specific files. Please PM me, and I will give your further suggestions. And ... Welcome to MSFN!