From the original CD: g:\SAV\setup.exe /a >> run in administrative mode copy all files from unpack directory to your $OEM$\$1\install\SAV\ In your CMD file, put this : ECHO. ECHO Installation de Symantec Antivirus Corporate 9.1 ECHO Please wait... start /wait %systemdrive%\install\NAV\Symantec_AntiVirus.msi /passive /norestart start /wait %systemdrive%\install\NAV\SAVCE_9.0.0.1400_AllWin_FR.msp /passive /norestart taskkill /IM LUCOMS~1.EXEe /F taskkill /IM VPDN_LU.exe /F taskkill /IM LUALL.EXE /F ECHO. ECHO Updating Virus Def ... Please wait ... start /wait "%PROGRAMFILES\Symantec AntiVirus\VPDN_LU.exe" /s Taskkill => kill LiveUpdate started from installer VPDN_LU.EXE /s run liveupdate silently This work fine from my french version XP SP2 / Corporate 9.1 FR