Good question. I took a look around and it says here
http://www.cyberlink.com/stat/volume-license/enu/license-guide.jsp
that you can use their products at the office and at home, however the same program can't be used at the same time. SO from the sounds of things you could have it installed on a work computer or a home one OR two homes, as long as only one copy is being used at the time.
At least that's the way it looks.