Zennoposter can make standalone programs via zennobox, the GUI is not fancy but it still can be done... also the bots can be made fast using Csharp etc... so what is it you want to do just go to each url where you know the product is and post comments? or do you need to upvote etc... give me some more info.. maybe shoot me a PM and i can see what i can do... thx.
You can always try and get a custom one built for your needs.
I can tell you right now that you wont find one. You have to make it yourself. I have been using one I made for over a year now and I would never share it because that would cut into my profit. That's why you can't find them because people keep them to themselves.