Upgrade launcher from ver 2.2.0 to 3.5 now I can't play the game at all

1-downloaded the zip file extracted to game folder now the launcher no longer works at all the old one or the new one. My guess is the manual upgrade was poorly written now I can't play thanks I should have left the old launcher alone at least I could play. 2-Tried to do an uninstall reinstall and nothing happens too bad I really did like playing this game but I am done.3- Got the game working again had to remove all aoe online files then reinstall everything not the best solution since making upgrades should not break the game.