I'm not sure I follow. By it's very nature, freeware is available for a price of $0. You could seek an injunction to halt distribution, but I think you'd have a hard time proving any monetary damages or loss.Well, I disagree with the assumption that freeware has a value of zero, but that depends on the artist. :hehe:
You may be confusing copyright and licensing.You can't legally download freeware and then sell it for a profit, you can't legally profit from derivative work without permission from the creator of the work that your work is based on.
Copyright has to do with the (re)distribution of an asset. It does not cover how that asset is used; in fact, courts in the US* have specifically said that a copyright holder cannot exert control over the use of their item. With respect to copyright, selling it for a profit or giving it away freely are both violations.
Derivative assets can definately be sold without permission. They generally need to be transformative with a substantial amount of original work, or fall under 'fair use' guidelines (or the original has to be ineligible for copyright protection.)
Licensing would control what you can and cannot do with an asset.
Heh, I hear youprimary reason I never went payware is because i didn't think there would ever be enough money in it for the aggravation involved.

Curtis
* Yes, I know the DLS is specifically under QLD law :wave: