Diablo 2 + Diablo Expasion Battle.Net Help

Basically my question is:

If I used a non-Battle.Net CD key for Diablo 2, but for the expansion pack, I used a Battle.Net CD key, would I be able to play over Battle.Net? Or do both of the keys need to be compatible with Battle.Net.

Thanks. I have no clue what I'm doing.

 

I think i tried that a long time ago and i'm pretty sure both cd-keys have to be legit.

 

They both have to be compatible.

 

Alright. Thanks guys. Saved me a bit of a hassle. ^_^

 

Yes they do, but you can buy 'em both online for a pretty good price. http://www.d2craft.com/index.php?cPath=380 Once you buy that you can download the game from blizzards website.