I don't have the msi so I'm using a startup script. It's being setup as a computer object and I know the system account can access the network share. This is the script Microsoft provided on their website. I only modified the path to the installer. setlocal REM ********************************************************************* REM Environment customization begins here. Modify variables below. REM ********************************************************************* REM Get ProductName from the Office product's core Setup.xml file, and then add "office14." as a prefix. set ProductName=Office2010PRO REM Set DeployServer to a network-accessible location containing the Office source files. set DeployServer=\\appserver\applications\Software\Office2010 REM Set ConfigFile to the configuration file to be used for deployment (required) set ConfigFile=\\appserver\applications\Software\Office2010\ProPlus.WW\config.xml REM Set LogLocation to a central directory to collect log files. set LogLocation=\\appserver\applications\Software\Office2010\Office2010LogFiles REM ********************************************************************* REM Deployment code begins here. Do not modify anything below this line. REM ********************************************************************* IF NOT "%ProgramFiles(x86)%"=="" (goto ARP64) else (goto ARP86) REM Operating system is X64. Check for 32 bit Office in emulated Wow6432 uninstall key :ARP64 reg query HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432NODE\Microsoft\Windows\CurrentVersion\Uninstall\%ProductName% if NOT %errorlevel%==1 (goto End) REM Check for 32 and 64 bit versions of Office 2010 in regular uninstall key.(Office 64bit would also appear here on a 64bit OS) :ARP86 reg query HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\%ProductName% if %errorlevel%==1 (goto DeployOffice) else (goto End) REM If 1 returned, the product was not found. Run setup here. :DeployOffice start /wait %DeployServer%\setup.exe /config %ConfigFile% echo %date% %time% Setup ended with error code %errorlevel%. >> %LogLocation%\%computername%.txt REM If 0 or other was returned, the product was found or another error occurred. Do nothing. :End Endlocal