here is what i did.. in runonce cmd installing it from a CDrom ---------------------------------------- REG ADD %KEY%\025 /VE /D "Symantec Antivirus Corporate Edition 10" /f REG ADD %KEY%\025 /V 1 /D "REGEDIT /S %CDROM%\3rdPartyApps\SAV101TP\PreventStartScan.reg" /f REG ADD %KEY%\025 /V 2 /D "%CDROM%\3rdPartyApps\SAV101TP\Symantec.msi RUNLIVEUPDATE=0 REBOOT=REALLYSUPPRESS ENABLEAUTOPROTECT=1 ADDLOCAL=SAVMain,SAVUI,SAVHelp,EMailTools /qb" /f ---------------------------------------- and the reg key for prevent scan contains -------------------------------------- Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Intel\LANDesk\VirusProtect6\CurrentVersion\Custom Tasks] "CreatedUserQuickScan"=dword:00000001 "CopiedDefaultScanOptions"=dword:00000001 -------------------------------------- also if you want to have a newer version of the definition files.. just download the latest definition from symantec, find the definition folder extract the files and then zip it up to be named.. VDefHub.zip it will load the installation with the newest updates.. after some months or perhaps a year later, the virus def. will still expired... how about Autoit script??