NIS 2010 Multilingual support.

Hi:

 

Here's the story....

 

I have a client that has an English version NIS 2010 but would like to have it in Spanish.

 

Is it possible to change it on-the-fly? Is Multilingual built-in or selectable (I don't think so?)

 

If not, is there a *free* solution that would work with the existing US product key?

 

TIA