If you have upgraded to Kurzweil 3000 Version 12 and you can no longer open older Kurzweil files, you need to download the UpdateKes file. You need to know your Kurzweil serial number before you can access the download page.
UpdateKES is a converter that enables you to open Kurzweil 3000 Version 8 and earlier image-based .KES files that either can no longer open or that open but in which you cannot page through or navigate without error messages. It should only be installed on a computer that already has Kurzweil 3000 Version 12 or above installed and registered.
We recommend that you run the program through all libraries of KES files which you share with others, and then redistribute those files that have changed.