How do I put my Avast on my other computers? Already purchased for 5...

I bought the Avast program for 2 years for all 5 of my computers, how do I get it onto my other 4? It went straight onto the computer I purchased the program from but now i am stuck! Please help me.

Presumably we are talking about a purchase of 5 avast 5.0 Pro licenses ?

If so - Follow the same procedure for the other 4 as your avastlic.license file that you received should be good for all 5 systems.