Just to take the LEGACY folder is the easiest method. A little bit better for the install of a Microsoft OS is it to have the CAT files within the same folder. So if you copy the NVATABUS.INF, NVCOI.DLL and NVATA.CAT into the SATARAID folder and then do the integration of this completed SATARAID folder, it might be easier for MS to take the correct drivers. No editing is necessary! I think this method makes the most sense to me, to make sure I have the right drivers ... it is just doesn't seem optimal to be using the legacy drivers!? However, why does this not work when using the floppy? I had tried copying the contents of the sata_ide folder onto my F6 floppy with the contents of the sataraid folder and then installing from a standard non-slipstreamed WinXP Pro w/SP2 .. and I got the same symptom ...reboot loop after the GUI install portion. Another note ... have you tried pulling in the nvata.inf and nvata.sys from sata_ide into the sataraid folder then modifying the txtsetup.oem file in sataraid to refer to these files instead of nvatabus.inf and nvatabus.sys? Then we can delete the nvatabus.sys from sataraid folder. The reason I suggest this is I did an MD5 checksum on nvata.sys and nvatabus.sys and they are identical!!