maybe 4_, not 3_... [sourceDisksFiles] fasttx2k.sys = 1,,,,,,4_,4,1 ulSata.sys = 1,,,,,,4_,4,1 and create $OEM$/$1/xxx and specify xxx as OemPnPDriversPath in [unattended], WINNT.SIF & place PDC378 driver files in xxx & *.sys in I386 ---------------------------------------- OemPnPDriversPath=xxx * $OEM$ should be created in root, where I386 folder is located.