Will NIS 2011 (version is 18.7.2.3) run on a 64 bit Windows 8 PC ?

Some time ago I bought NIS 2011 with a license to install on 3 computers. I installed it on my workhorse
computer running Win XP 32 bit. Now I want to install on a second computer - my new Win8 machine - 64 bit. 
I plan to use both computers (at least for a while).  They share a router but are NOT networked. Any advice on how to utilize my NIS 2011 license on these two machines? Current version is 18.7.2.3