Hello jforno & welcome,
A good question that you have asked.
I just did a quick search on my laptop / computer [including 'show hidden files & folders'] & it's certailnly not obvious.
[I found my Office Home & Student 2007 folders , but unlike Office 2003, Outlook of course is not included.]
The only entry I see is in 'Uninstall or Change a programme', & that's no help.
Perhaps a wiser person out there will come to the rescue.