Dear All, Sorry to bother all with this often discussed issue, but till now I did not find a solution that solves my problem. I have built an unattended installation DVD with XP - slipstreamed SP2, Office XP - slipstreamed SP3, MUI (german) for XP, MUI(german) for Office. The only problem I have is caused by the installation of the MUI for windows. I copied the MUI package in the folder $oem$\$1\Install\muiinst of the setup DVD. In the cmdlines.txt I added. [Commands] "Install\muiinst\muisetup.exe -i 0407 -d 0407 -r -s" I also tested [Commands] "%systemdrive%\Install\muiinst\muisetup.exe /i 0407 /d 0407 /r /s" But the installation did not start during excecution the cmdlines.txt (something like file not found in the error log, I don't know it by hearts exactly). The regtweaks I called in the cmdlines.txt are executed well but not the MUISETUP. I know I could copy the command in a batch but I would know it. I followed the MS guide. The files are all copied to the harddrive. I also found out - if I call the command for MUI installation by the command prompt and I use the complete command in quotion mark ("...") I got the error message file not found. If I leave any all switches like '/i 0407' and execute muisetup by ""%systemdrive%\Install\muiinst\muisetup.exe" the program starts. Without quotation marks and option switches it works as well. But for the cmdlines.txt I have to state each comment in quotation marks. Has anyone solved that problem or found the fault I did? Thanks