I want to put an Install.cmd file to I386 folder, and make WinXP copy the file to %systemroot% during install (Without OEMPreinstall=Yes in Winnt.sif) Then, I could add the reg code in HIVEDEF.inf, make WinXP run Install.cmd at first login HKCU,"SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce","Install",0x00020000,"%%systemroot%%\Install.cmd" Cos I made RAID 0 as system drive from SATA chip (Sil3112r), but I don’t want to integrate the SATA chip driver using nLite or manually. Somebody could tell me how to do that, please? Thanks Sorry about my poor English, but I think that you should understand what I talking about.