Two copies?

Being mobile in my job I would like to run the same copy of GW on my laptop for the times when I'm away from home?
While it doesn't have a gig of ram and a large monitor it is still playable on my vaio

Is this possible or would I be infringing some legal restriction?
Given the login process it shouldn't be a problem for the company as only one copy can be run by one customer at a time.

Tia

There is no problem with this. After all, you can download the game client on the official web page

Thanks didn't want my registration cancelled after two days

I'm away for the rest of this week, so hopefully I can get really immersed.