VAC is shareware.
Trial version of the product is free of charge and can be distributed freely if its package and file contents remain unchanged and there are no commercial purposes. You cannot sell it, solely or within other products.
Full version is commercial and is granted to registered users after payment. This version can be used only in conditions specified in the license agreement. See the license.txt file in the distribution package.
Audio Repeater application is free of charge and can be used separately, without installing the entire product.