I have just tried this procedure with XP Pro x64 (with SP2 which I manually integrated with the /integrate switch) and the ICH8R Intel RAID driver (7.6.0.1011) and it wasn't successful. My RAID partition was seen and the installation seemed to go OK (both the textmode part and the GUI part), but after the first reboot (ie. after installation had finished), it brought up the Windows XP x64 boot screen but immediately reboots again (ie. the progress bar bit does not even start moving), only now it brings up the "Windows was not shutdown properly" boot screen, "Do you want to (a) Start Windows Normally, (B) Start Windows in Safe Mode" etc. It will then keep going in this cycle. Because it's x64, TXTSETUP.SIF is placed in the AMD64 folder. Here's exactly what I added: [SourceDisksFiles.amd64] iastor.sys = 1,,,,,,_x,4,1 hal.dll = 1,,,,,,3_,2,3,,,1,2 [HardwareIdsDatabase] PCI\VEN_8086&DEV_2822&CC_0104 = "iaStor" 1394\609E&10483 = "sbp2port" [SCSI.Load] iastor = iastor.sys,4 atapi = atapi.sys,4 [SCSI] iastor = "Intel(R) ICH8R/ICH9R SATA RAID Controller" aic78xx = "Adaptec AHA-294X/AHA-394X/AIC-78XX SCSI Controller" As you can see, I added the new lines immediately after the section header, and before anything else in that section. Is that OK ? Where am I going wrong ? BTW, I also tried adding the Intel ICH8R ACHI driver, which is actually the same as the RAID driver (ie. iastor.sys). To do this, I simply modified the relevant sections to: [HardwareIdsDatabase] PCI\VEN_8086&DEV_2822&CC_0104 = "iaStor" PCI\VEN_8086&DEV_2821&CC_0106 = "iaStor" 1394\609E&10483 = "sbp2port" [SCSI] iastor = "Intel(R) ICH8R/ICH9R SATA RAID Controller" iastor = "Intel(R) 82801HR/HH/HO SATA AHCI Controller (Desktop ICH8R)" aic78xx = "Adaptec AHA-294X/AHA-394X/AIC-78XX SCSI Controller" Is this correct for also adding the ACHI driver ?