Hope I can get help with the following: I'm trying to do a fresh install of windows xp on a pc with no cdrom drive so I need the usb cdrw to be recognised in DOS. I've downloaded the USBASPI.SYS and DI1000DD.SYS and made changes to config.sys and autoexec.bat but my cd drive is still not being recognised. After selecting option 1 to sart computer with usb cdrom support I'm getting the following; This driver is provided by Oak Technology, Inc., OTI-91X ATAPI CD-ROM device driver, Rev D91XV352 (C)Copyright Oak Technology INc. 1987-1997 Device Name : MSCD001 No drives found, aborting installation ASPI Manager for USB mass-storage Version 2.06 (C)Copyright Panasonic Communications Co., Ltd. 2000-2003 Controller :00-20-2 VID=8086h PID=7112h (0000h-0000h)UHCI : I/O 2020h-203Fh USB Device : HOST [00-20-2 VID=8086h PID=7112h (0000h-0000h) UHCI] : ^--nothing ERROR : Target USB device not found USB CD-ROM Device Driver Version 1.00 (c)Copyright Panasonice Communications Co., Ltd. 2000-2003 ASPI Manager Not Installed. CD-ROM Device Driver is not installed. DI1000 ASPI DISK Driver Ver 2.00 Copyright(C)2001 NOVAC Co.,Ltd. ASPI Manager not installed. Microsoft RAMDrive version 3.06 virtual disk D: Disk size: 2,048k Sector size: 512 bytes Allocation unit : 2 sectors Directory entries : 64 File not found Any help would be greatly appreciated.