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View Full Version : [DoW] "Invalid CD Key" or "CD Authentication Failed" message in multiplayer


Moe
18th Dec 04, 8:46 AM
Symptoms: When trying to play online, an error about an invalid CD key is displayed, even though installation and possibly singleplayer worked fine.


Problem Analysis: Apparently the installer accepts some invalid CD keys, particularly ones with typos. There's also a possibility that the write to registry during the installation process is somehow not carried out successfully. Your registry then contains either an invalid CD key, or no key at all.
Another possibility is that the registry was wiped, for example through reinstalling Windows, which would of course erase the DoW key as well.


Solution: Manually edit your registry to add the key. Be advised that by tampering with the registry you may screw up your computer if you're careless.

Click on "start", select "run", type "regedit" and hit enter.
A new window will appear. Use the explorer-style menu on the left to navigate to this registry key:

HKEY_LOCAL_MACHINE\Software\THQ\Dawn of War\

Find the entry for "CDkey". By double-clicking on the "value" part of the entry, you can edit the key. Make sure it actually matches the key displayed in your manual/your box.
Pay special attention to easy-to-confuse characters such as "0" (zero) and "O".

If the key is missing for some reason you can right-click on an empty spot in the right-hand window and select "new" to add a new key. The key type is REG_SZ (called "string" in the right-click menu).