From Jonsdocswiki

The Office Customization Tool (OCT) is used to generate (unattended) answer files for Microsoft Office installations. Using the Office 2007 OCT it's possible to:

• State which features of Office should be installed.
• Specify previous Office installations that should be removed.
• Provide additional locations for source files.
• Give installation locations, serial numbers etc.

Among a large number of other features.

See also

• Microsoft Office 2007
• Office 2007 Unattended Installs
• MS Office image error (Mac)
• Office 2007 Compatibility Pack