copy office xp 2002 activation files

Hi guys, I was recently told that as long as I made no hardware changes on my
PC I could copy my Windows XP Pro activation files and when I reinstalled it
I could replace the new files with these old ones to skip the activation
process. Now I was wondering if the same holds true with my Office XP 2002
files. If so, what files do I need to copy and where will I find them?