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Key Code invalid. Everytime I enter one, it just disappears.
Aug 13, 2013 10:37 AM
Joined: Aug 13, 2013
Posts: 1
Hey guys,

everytime I enter my CoD4 Keycode it say's it's valid. But as soon as I try to connect to a Server, or restart the game, my Key-Code just disappears and I have to type it in again (the last 4 letters stay most of the time) I dont know what to do about it. I searched the Web, didn't find a similar Bug.

I had CoD4 installed on my "old"-PC, when I got a new one, I got all my data on an extern hard drive, of course CoD4 too. I just copied it onto my new Harddrive and my KeyCode was gone. I just bought a new one via an Online Keystore.
I would try to reinstall CoD4, but I don't have a CD of it near by.
And tbh my Internet Connection is so bad, I wont be able to download it within 4 Days.
I already cleared registry. But the Key in the registry fits to my new key.. kinda weird..

so yea.. I would appreciate any help!

P.S sorry for my bad english. :-/
Sep 30, 2013 6:28 AM
Joined: Sep 30, 2013
Posts: 1
i m also facing the same prob pls post solution if u get any pls pls pls let me know
Nov 13, 2013 2:22 PM
Joined: Jun 06, 2013
Posts: 1
hello everybody ,i had this problem for along time & finally i got it fixed finally . all you need to do :
1_is to run iw3mp.exe as administrator
2_enter the key again
3_then join your server and waste your time for many hours on this game . pls try to post a confirmation that it worked thanks
Jan 04, 2014 8:55 AM
Joined: Jan 04, 2014
Posts: 1
I had the same problem and it works when I ran it as admin..... Thnx mos10000....... XD
Mar 01, 2015 11:15 PM
Joined: Mar 01, 2015
Posts: 1
@mos10000 Bro but it now says KEY CODE IN USE ? Plz help me
Dec 21, 2015 2:26 AM
Joined: Dec 21, 2015
Posts: 1
same problem.plz help
Jan 20, 2016 11:04 AM
Joined: Dec 12, 2008
Posts: 3
Hi there,

When you enter key code you should press ENTER and then VERIFY, i use to enter code in COD2 and COD4 and key code disappeared until i pressed ENTER and then VERIFY.
Sounds stupid but it solved my problem.


Jul 16, 2017 8:07 AM
Joined: Jul 10, 2015
Posts: 1
I have same problem and now it works, thx a lot!
Aug 31, 2017 2:35 AM
Joined: Sep 16, 2016
Posts: 1
i have the same problem