"cd Key Is Valid"
 

So after i got done beating single player i wanted to go online.... I updated my game i think it was (1.03 English version).... Then i went to create a new account and

[100] Bad CD Key

Popped up.
I bought the game sealed [ in store ]
Is someone else using my key?

Quite likely, I'd say. Presuming you typed it in right ;)

BTW, you didn't actually mention what game you're talking about...

My bad...
Age Of Empires III

Very slim that someone else is using your serial, unless.


1. You gave a copy of it to someone else.

2. Someone saw your serial and wrote it down.

3. I dunno if there is a keygen for this game or not, but even there is a very slim chance someone generated your key, very doubtful this one.

If you bought a perfectly legit copy of the game, the official support will most certainly help you.

Closed; off-topic, contact the publisher for help.