probir

hi all, i am new in this forum. and trying to make my own unattended xp cd.... but everything doing i got an error. the details procedure of making my xp cd. 1. using NLITE for add some programme and giving xp cd key and some tweaks that NLITE include in the sw. 2. making iso of FINAL NLITE output. 3. Download WPI and adding more programme. 4. using Windows Unattended CD Creator for adding wpi command. 5. make FINAL Windows Unattended CD Creator output. 6. open this FINAL Windows Unattended CD Creator iso using ULTRA ISO. 7. copy my whole WPI project into the ISO 8. Burn. but there is an error while xp setup cd is running KBBDUS.DLL error. what i have to do now.... plz help with details procedure ...........