Invalid CDKey

[Janissary]

Well i have bought my game so this is really strange and I saw more people are having this problem what can be done to this? I have registered on:

https://login.gamespyid.com/index.aspx

as: SultanEfkan

I started up medieval and filled in my info and still it doesn't work.

PS: I activated my account on gamespyID.
What did i do wrong?

[Wolfshead]

Copied from the other thread:

You're getting the error message:
"Login failed - invalid CD-key"

Right this is how to resolve (with thanks to various posters)
You cannot change the cd-key ingame anymore (most likely for the protection against illegal games), so you have to do other things.

Open Start
Click Run
Type: regedit
Now go to this: "HKEY_LOCAL_MACHINE/SOFTWARE/SEGA/Medieval II Total War"

Now you'll see a value representing the CD-key. Change it to what it should be. You could have done the following wrong:
-Don't type spaces
-Do type the "-"s
-Don't use "o"s use "0"s
-Type everything (except for the numbers obviously) in capital letters

[Internazionale]

i did that, and it still wont work, help! please!

[Spart]

Yeah, same problem here. The CD-key is correct now, but still not working.. Damn.

[shadepanther]

Yeah I had to fix it with the registry. I mean they are clearly Os on the back of the manual not 0s but it didn't take long to fix

[Vanquisher]

When this happened to me I re-installed it and made sure all the letters were capitals. It works now.

[amish_hitman]

That let me into the lobby but I didn't see a single game or server listed
Edit:
mannow it won't let me in again

[accidx]

i installed the game but it get the invalid cd key

i tired going to Now go to this: "HKEY_LOCAL_MACHINE/SOFTWARE/SEGA/Medieval II Total War"

but the game isnt even in the software/sega.... i dont see sega... doesnt make any sense.... please help..

[DarK_RTW]

Re-install game. Make sure anti-virus etc doesn't block the keys from being written.

[billerator]

I've got ths same problem too and as I can't see a way around it I'm gonna email CA and bust their balls!

Actually, I have just thought of a way around it: arrange a game with a friend and both download hamache which I'm told is software that sets up a virtual LAN between you and your mates IP address therefore no CD key needed to enjoy hot multiplayer action!

P.S. I haven't tried hamache yet