Sysprep after unattended install

[Caycep]

I've just spent 45 minutes looking through the forum and cannot find out 100% how the following can be done:

After an unattended install is complete, how can I get sysprep to run with a factory reseal.

Here's what I have up this this point:

Under Runonce.cmd:

@echo off
IF EXIST D:\CD.txt set CDROM=D:
IF EXIST E:\CD.txt set CDROM=E:
IF EXIST F:\CD.txt set CDROM=F:
IF EXIST G:\CD.txt set CDROM=G:
IF EXIST H:\CD.txt set CDROM=H:
IF EXIST I:\CD.txt set CDROM=I:
IF EXIST J:\CD.txt set CDROM=J:


SET KEY=HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnceEx

REG ADD %KEY% /V TITLE /D "Installing Applications" /f

REG ADD %KEY%\053 /VE /D ".NET Framework 1.1" /f
REG ADD %KEY%\053 /V 1 /D "%CDROM%\Software\NetFramework\netfxsp1.exe" /f

REG ADD %KEY%\030 /VE /D "Windows Media Player 10" /f
REG ADD %KEY%\030 /V 1 /D "%CDROM%\Software\WMP10\MP10Setup.exe /q:A /c:\"setup_wm.exe /Q /R:N /DisallowSystemRestore\"" /f


REG ADD %KEY%\125 /VE /D "Sysprep Resealing and Shutdown" /f
REG ADD %KEY%\125 /V 1 /D "%CDROM%\Software\sysprep\sysprep.cmd" /f

EXIT

Then under sysprep.cmd I have:

cmdow @ /HID
sysprep -reseal -reboot

EXIT

It's not working. Can anyone tell me exactly how I can run sysprep from the unattended install CD and have it go into reseal so the user DOES have to enter in the product key, name etc.

Thanks