Our old pal, Wolfgang, was bloodied by constructive criticism, but he’s not out for the count. His Encryptor-Decryptor add-in is now freeware. I enjoyed reading the comments on that original post. I wonder, though, why some add-ins are seemingly commercially viable and others aren’t. Maybe they all are, but the author lacks the skills to market them effectively.
I, for one, can think of no better gig than selling shrink wrapped software. You write in once, and just keep cashing checks. I’m sure there are support and upgrade issues that I’m not considering. Then, I suppose, it gets so popular that you have to write a product activation scheme to stop people from stealing it.