Installing Windows XP without a floppy drive or CDROM on a Laptop

ok, here is my problem. I don't have a cdrom
drive on my laptop, and I don't have a floppy drive. I have a usb port, but I don't have a usb floppy drive. I have a usb cdrom drive, but I don't have a usb cdrom. I have a usb flash drive, but I don't have a usb