Call of Duty 4: Modern Warfare (2007)

Call of Duty 4: Modern Warfare (2007)

☬Greats Oct 19, 2014 @ 9:10pm
Key cod in use Some servers ive been banned.
i bought call of duty 4 today and when i play on some servers it says key code in use or banned from this server bought the game from steam store. need help feel like steam ripped me off or something
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Showing 1-12 of 12 comments
Steam version does not need to have the key typed in ingame settings
☬Greats Oct 19, 2014 @ 9:57pm 
okay but what about when i join servers it says key code in use in most of the server i cant play on anything
For the time until you solve the problem, play on servers without punkbuster. Usually no cheaters.
Try installing the new punkbuster version as well.

If that doesnt help, contact support
Last edited by Muppet among Puppets; Oct 19, 2014 @ 10:04pm
☬Greats Oct 19, 2014 @ 10:04pm 
How do install the new punkbuster ?
Look in a downloadlist of a reputated computer magazine.
Do you get kicked from servers without punkbuster too?
☬Greats Oct 19, 2014 @ 10:09pm 
on or off i cant join servers always says key code in use
Ok, then its something else.

Type your error message and games name in a searchengine, to read about the error.
Lorkhan Oct 20, 2014 @ 8:04am 
check my guide for COD 4 MP and it'll allow you to play on the best servers.
Laptop Oct 20, 2014 @ 3:46pm 
Yeah this error comes up a lot, but no one ever seems to post how they fix it.

Verify the game cache.

https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335
☬Greats Oct 21, 2014 @ 12:34am 
Got it to work i just needed to run steam on Administrator. But my stat's got erased for cod4.
vanoss Oct 21, 2014 @ 7:06am 
I've had this issue before, and it's pretty simple to fix.

First, uninstall CoD4 in it's entirety. (I know, it sucks, but oh well.)
Then, ensure ALL remnants of the game is removed from your SteamApps directory.
Now, open up the registry. (Windows Key + R || Type in, "regedit" without quotes.)

File---Search... "codkey"
When it's done, you should see a registry entry labeled, "codkey," surprisingly enough.

Delete that entry, then re-install CoD4. It that doesn't work, please get back to me.
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Date Posted: Oct 19, 2014 @ 9:10pm
Posts: 12