Way Forward

I got Avast 4 Professional for 3 years on 4 PCs on Dec 10th 2008 for my small business and want to add at least 1 extra user. Does anyone know the best way to go about this ? Can I upgrade or do I need to just buy another single user ?

Hope you can help

L

I would suggest contacting sales (at) avast (dot) com direct, they would certainly know your best options.