I, a long time ago bought MTW by itself without Viking Invasion on it and when I bought Viking Invasion with MTW I lost my original. THen, my GF's kids wanted to play MTW so I gave them a copy and they lost it. My question is, I already have the Viking Invasion CD but I don't have MTW disk to install it.

My questions are;

1. How dumb am I for losing two great sets of cd's.
2. If I find / use a no cd patch / and use two different cd keys (One from the lost copy that I wrote down and a new one that I would buy, could we both play Viking Invasion?
3. Does Viking Invasion change anything at all in multiplay?
4. Or, do I have to buy a complete VI - MTW combo set - AGAIN.