Install XP from a RAM loaded ISO image. Use a default XP ISO image. Addional files are at a F6 virtual floppy. After years of search a new driver is developed: FiraDisk: File/RAM Disk driver for Windows. http://www.boot-land.net/forums/index.php?showtopic=8804 The driver is at early development. The driver does mount a grub4dos RAM drive. That's awsome and can be used at a lot of conditions. Use grub4dos to load a virtual floppy and XP installation image to RAM first. The virtual floppy is used
Since looking at this thread: Install 2000/XP/2003 from RAM loaded small ISO I started to wonder if it would be possible to combine the two projects (sort of). Would it be possible to boot a mini iso with the boot files (as flyakites guide - saves on boot time!) in RAM (0XFF) and direct boot the full iso (safes RAM) from the UFD (0XFE) then install from the full iso. Just a thought but I wondered if it would work. Edit: Nearly forgot... tested install on my desktop with and without card reader.