Neverwinter Nights Back-up

[Bobotaculys]

I want to back-up my Neverwinter Nights CD's and I looked around the forum and saw CD 3 was protected by securom 4.??. So I tried to copy it with Alcohol120% on the securom 4.0 > profile, but this creates a copy which needs a emulation program. Now I've got a few questions and I hope someone can answer them:

1. If I use an emulation program does the CD-key still works for playing on-line?

2. If I'm gonna use a crack does the CD-key still works with multiplayer?

3. If neither a crack or emulation program lets me a use the CD-key for multiplayer, how can I make a back-up, which accepts the CD-key?

Hope you guys can help me...