In slipstream_DPM.cmd You first remove alide REM ### Removing to be overwritten entries. ### REM ### [sourceDisksFiles] ### SET T1=nircmd.exe inidelval I386\txtsetup.sif "SourceDisksFiles" %T1% adpu160m.sys %T1% aliide.sys %T1% dac2w2k.sys But you dont add it again! REM ___[sourceDisksFiles]___ SET T1=nircmd.exe inisetval I386\txtsetup.sif "SourceDisksFiles" SET T12="~x201,,,,,,4_,4,1,,,1,4" REM ALI/ULI REM BUSEXTENDER %T1% "aliide.sys~x20" %T12% ^^^^^^^^^^^^ shouldnt it be removed? 1,,,,,,3_,4,1,,,1,4 1,,,,,,4_,4,1,,,1,4 What is the diference - 3_ disc 3rd 4_ disc 4th. Will this matter on computer which have ali controler [on computer without one there is no difference?]?