Hi guys. Been very happy with my avast! version 4.5 Professional Build: Nov2004 (4.5.561) and I now have a router with a secondary PC next to me. The info is a little confusing. I am the sole user of both PC’s. Can I install my avast program and copy and paste my license key onto my secondary PC? Hope to hear from you soon, I need to use my other PC pronto but I can’t get on the net without protection. 
P.S. I’m just a home user, not a business.
As far as I am aware you would need a second Pro license (but I’m just a user, home version at that). You would have to check this out at the website.
For speed there is nothing stopping you installing the latest avast pro (trial 60 days) version on your 2nd PC giving time to get your 2nd license, then input that key into the 2nd PC.
That’s right, tx!
A little voice in my head says this has been explained a while back here on this board. If I recall correctly you are allowed to use the key on the second system as well. I am not sure though, so don’t take my word for it. Do as David suggested in the mean time. Use the search option on this board, with a bit of luck you will find the thread where it is explained.
If you go to Avasts Home Page and look under products and the Pro Version you will see THIS there: It says it comes with 2 licenses, but when you click on it and get to the Pricing page it seems you must pay for that. This seems abit confusing and misleading??
Excellent, I have avast!4.5 Pro on both computers now, thank you all!