UPDATE: Never mind - I found the piece of paper with the disc key in a folder of old gaming info!
Original message: I found my old (legit) ToCA 2 disc in a box and wanted to play it to fill some of my stay-at-home time. Of course I had trouble installing on Windows 10, so I built an Windows XP box just for gaming. Now I'm trying to install on that XP machine and play, but it asks me for a disc key. I have the disc and even have the 16 page manual that came with it, but I can't find a disc key. Where would I find this key? Thanks!