The community is also a great place to check out. Try these places for help from other users:
You can install Age of Empires Online through Steam by clicking the green "PLAY GAME" button here:
You will need to register with Games for Windows Live to play this game. Upon your first login, a CD Key will be automatically registered to your Games for Windows Live account.
If Games for Windows LIVE doesn't assign a CD Key upon your initial login, please see the following steps to locate your CD Key within the Games for Windows LIVE client:
If you continue to encounter issues with your Age of Empires Online CD Key, contact Age of Empires Online support.
If you're encountering issues with launching Age of Empires Online, make sure everything installed smoothly.
Exit Steam entirely.
Browse to your Age of Empires Online installation folder (Usually C:\Program Files\Steam\steamapps\common\age of empires online\)
Run the following installers:
Reboot your computer and test any issues again. If the issue persists, contact Age of Empires Online support.
In order to access your purchased DLC, you will need to install Age of Empires Online through Steam, as shown in the the Installing Age of Empires Online section above.
Downloadable content will not be listed as a separate entry in your Steam games list. When purchased, this content will be automatically downloaded and incorporated into the game.
To view the additional content for this game that is registered to your account, please do the following:
Alternatively, you can also find the DLC (downloadable content) for a game by right-clicking on the game, selecting 'Properties' and navigating to the DLC tab.
If you are unable to locate the content that you have purchased in-game, contact Age of Empires Online support for detailed instructions.
If you encounter issues while running Windows 7 or Windows Vista, please complete the instructions in our Windows 7 and Vista Troubleshooting FAQ.
If you are running in Windows XP, take the following steps: