Playing EE and Art of Conquest Expansion Today

When I was younger (like 2007-2010) I used to play Empire Earth with the Art of Conquest expansion with my family on our old PCs. It was some of my fondest memories but getting these games now seems impossible. I'm missing the game a lot lately and willing to do anything to relive those memories - does anyone know where I can purchase it today, and how I could get it to work? Any help would be appreciated, thanks.