Here is the first three entries I have for my Unattended Install. I install the SAV Client, Update the definitions, and then update the liveupdate to the newest version. REG ADD %KEY%\005 /VE /D "Symantec Anti Virus Corporate 8.0" /f REG ADD %KEY%\005 /V 1 /D "%systemdrive%\install\Applications\sav\sav8.exe /qn" /f REG ADD %KEY%\010 /VE /D "Update Anti Virus Definitions" /f REG ADD %KEY%\010 /V 1 /D "%systemdrive%\install\Applications\sav\vdef20050126.exe /Q" /f REG ADD %KEY%\015 /VE /D "Update to Symantec Live Update 2.6" /f REG ADD %KEY%\015 /V 1 /D "%systemdrive%\install\Applications\sav\lusetup.exe" /f Download the virus def exe file from Symentec. I renamed the file a bit for my sake...but it works each time.