Blizzard provide a new service that players can buy account upgrade keys and download the game client for World of Warcraft: The Burning Crusade directly through the account management section of www.worldofwarcraft.com.

You can now buy account upgrade keys and download the game client for World of Warcraft: The Burning Crusade directly through the account management section of www.worldofwarcraft.com. With this new direct online upgrade method, you don?t even need to leave your desk if you decide to upgrade to The Burning Crusade and join more than two million players who are already adventuring beyond the Dark Portal.

All you need to do is:
1. Login to Account Management
2. Click the Burning Crusade "Download Now" button
3. Enter your credit card information
4. Follow the link to download the Burning Crusade game client
That?s it! If you haven?t upgraded your account yet, now?s your chance to take your World of Warcraft experience to the next level - whenever you want, and absolutely hassle-free.