I am using a program called Kurzweil 3000 to read my textbooks in school. It is for disabled students who are physically unable to read from a book. As you may know many textbooks are not available as e-books. Whenever my textbooks are unavailable as e-books I have to purchase the textbook and the university scans the book page by page destroying it in the process.
I have bought many text books over the years and have accumulated quite a few books that I would like to keep after graduation. The problem with that is Kurzweill 3000 has to be renewed each semester with a custom serial key. I am graduating next year and it bothers me that I'll be unable to use these books once I've graduated.
The file extension is .kes. I tried searching the forum but I couldn't find any previous threads about Kurzweil 3000.