Hi all,
I am trying to create a bootable CD and boot it using a USB CD-ROM drive.
I an using a Supermicro motherboard P4SCT+II that support boot from USB CD-ROM in it's BIOS.
I am using a Win-98 boot and my config.sys and Autoexec.bat files are as follow:

config.sys:

DEVICE=A:\ANSI.SYS
DEVICE = usb\aspiuhci.sys /int /all
DEVICE = usb\aspiuhci.sys /int /all /D1
DEVICE = cdrom\btcdrom.sys /D:cd2
LASTDRIVE = Z

autoexec.bat:

@echo off
SET TZ=GHO-02:00
GUEST.EXE
CDROM\MSCDEX.EXE /D:cd1 /D:cd2 /D:cd3
MOUSE.COM

:start
cls
echo.
echo CD#1 Startup Menu
echo =================
echo.
@echo  ************************************************ 
@echo  *  Choose the Restore option to avoid having  * 
@echo  *  to reactivate the operating system.  * 
@echo  ************************************************ 
echo.
echo 1) Creo Software Complete Overwrite Installation
echo 2) Creo Software Preservation Installation (System Partition Overwrite)
echo 3) Backup Creo System Partition
echo 4) Restore Creo System Partition
echo 5) DOS Prompt
echo.
echo.
choice /c:12345 /n Enter a choice:

if errorlevel 5 goto end
if errorlevel 4 goto Restore
if errorlevel 3 goto backup
if errorlevel 2 goto instpar
if errorlevel 1 goto instow

:instow
echo Are you sure ? [Y/N]
A:getkey.exe
if errorlevel==1 goto Yes
cls
goto start
:Yes
echo Executing Complete Overwrite...
a:instow.bat
goto Dos

:instpar
echo Are you sure ? [Y/N]
A:getkey.exe
if errorlevel==1 goto Yes1
cls
goto start
:Yes1
echo Executing Preservation Installation...
instpr.bat
goto Dos

:backup
cls
echo Performing Backup...
Backup.bat
goto Dos

:Restore
echo Are you sure ? [Y/N]
A:getkey.exe
if errorlevel==1 goto Yes3
cls
goto start
:Yes3
echo Performing Restore...
Restore.bat
goto Dos

goto start

:end
echo Are you sure ? [Y/N]
A:getkey.exe
if errorlevel==1 goto Yes4
cls
goto start
:Yes4


When I boot from a Floppy and then run files from the USB CD-ROM everything is working fine but when I burn (using Nero) a bootable CD the CD starts to boot, the USB CD-ROM driver is loaded and the CD-ROM is identified but then I get the following errors:

The following file is missing or corrupted USB\ASPIUHCI.SYS
Ther is an error in your CONFIG.SYS file on line 3

The following file is missing or corrupted CDROM\BTCDROM.SYS
Ther is an error in your CONFIG.SYS file on line 4

The following file is missing or corrupted COMMAND.COM
Type the name of the command Interpreter (e.g., C:\WINDOWS\COMMAND.COM)
A>
[COLOR=blue]

Please help I looked all over the Internet for solution but no luck.
Thanks very much.