Hi JBM <quote> Are you copying the files to the i386 dir on the cd? Here is precisely what i am doing : I made the directory $OEM$ which is next to i386 NOT inside it Inside the $OEM$ is.. \$1\Drivers\ataraid\ (Here I copy all the files off the RAID floppy disc) these are.. Fasttrak.sys Fasttrak.cat Txtsetup.oem Fasttrak.inf ReadMe.txt After this I insert the below in the winnt.sif file OemPreinstall=yes OemPnPDriversPath="Drivers\ataraid" Next I add to the TXTSETUP.sif [sourceDisksFiles] Fasttrak.sys = 1,,,,,,3_,4,1 [HardwareIdDatabase] PCI\VEN_105A&DEV_7275 = "Fasttrak133" PCI\VEN_105A&DEV_5275 = "Fasttrak133" [sCSI.load] Fasttrak133_nt52 = Fasttrak.sys, 4 ;Fasttrak133_nt5 = Fasttrak.sys, 4 [scsi] Fasttrak133_nt52 = "win2000 Promis MBFasttrak133 Lite Controller" ;Fasttrak133_nt5 = "win2000 Promis MBFasttrak133 Lite Controller" Then I RUN MAKECAB C:\XPCD\$OEM$\$1\DRIVERS\ATARAID\FASTTRAK.SYS C:\XPCD\i386\FASTTRAK.SY_ Which as you know creates a file inside i386 When I run the install on a formatted hard drive I get the messege Cannot find Fasttrak.sys This always happens at the stage where the Win2000 files are going to be copied to the installation folder (the loading bare stage) If what I say I have done looks ok then I will attach a copy of winnt.sif/txtsetup.sif and the textsetup.oem files Maybe someone will spot my mistake. I've been through it a hundred times and also tried the same RAID as the tutorial...nothing works.