Can I use NAV2009 without Internet Connection?

Hi I have a PC which do not have internet connection which I want to protect with antivirus due to external media. I am told by the norton tect support agent that I cannot use NAV 2009 without internet connection. It requireds internet connection for Activation/Renewal/Registration.

 

Is this true?

 

I didn't read any Internet connection required in the NAV2009 requirement in the product specification.

 

Please help.