1. Create your Office customization by running
setup.exe /admin
Which will open up the Office Customization tool
2. Select Create a new Office Professional Plus 2007 option
3. Take the settings as you want in the following set of options available
a) Setup
b) Features
c) Additional Content
d) Outlook
4. Save the resulting msp in the same directory
5. Run the setup.exe with following option
setup.exe /admin office.msp
Tips to update the patches
If we get any updates, say any patches from Microsoft then place it in Updates folder
Setup.exe has a logic to read and execute the newly found msp files from the Updates folder