We use the MS Office Customization Toolkit to perform a silent installation.
Import the Office CD contents into the Distribution Share using BDD workbench. From the command line, navigate to the root Office install directory. Run "setup.exe /admin". This will launch the customization GUI.
We inject our volume license key, change install mode to unattended with modal suppressed (means you will get a progress bar, but no prompts).
Save your setup file into the same directory with the office setup.exe. Call installation using this syntax: