Medieval II CD key problem

[jim5000]

I've just tried to play M2TW online for the first time, and when I log in with my gamespyID it says 'Logon failed - invalid CD key'.

I am using a full retail version of the game, patched and without any addons, does anyone know why it is saying this?

 

[jim5000]

A little bit of searching before blindly asking the question would have saved a thread! Oh well, here's the solution incase anyone ever searches for this topic -

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