This is pretty simple, cause it´s a .msi Installer. Just use
msiexec /i "%~dp0\RACT.msi" ADDLOCAL=ALL /quiet /l*v %TEMP%\dell_ract_1.0.log
For more information about msi command line parameters take a look at the following Microsoft Page:
http://technet.microsoft.com/en-us/library/cc759262(v=ws.10).aspx
View inventory records anonymously contributed by opt-in users of the K1000 Systems Management Appliance.