Sorry for digging up such an old thread, but its the best info Ive found... My source disk doesnt contain choice.exe - how can I specify the custom.inf file to look in another location for it? Or Can I simply build an ISO image and then use an ISO image editor to add choice.exe to the i386\system32 directory later? (I have tried this, however when choice.exe is executed it appears to lock up, nothing happens. I havent tried copying choice.exe to the folder that contains the batch file, but from testing on my own (XP Build) machine I have found it wont work unless the file is called from the system32 directory - edit: also i have tried running choice.exe from the bart cd's system32 directory however it doesnt work).. Any ideas? Thanks