I just wanted to say thank you Anderz for writing a sweet guide. I have the same exact S-ATA controller on a HP laptop and after reading up on tons of guides that did not work. Yours worked on the very first try! I used UltraEdit to find the exact lines where you added your entries to the txtsetup.sif file Magic ISO to save the boot info. Then reload boot info after creating the modified Win XP ISO. The S-ATA drive was automatically detected like an IDE drive! Thank you MSFN and thank you Anderz!!