If you use Kurzweil 3000 and are thinking about upgrading to Windows 7, be aware that only version 11 is compatible with Windows 7.
From the tech support people at Cambian Learning:
The only Kurzweil 3000 Products that are compatible with Windows 7 are listed below:
Kurzweil 3000 version 11 Standalone CD
Kurzweil 3000 version 11 Network
Kurzweil 3000 version 11 Web
If you have any previous version of Kurzweil you will want to get with your sales rep to find out what it would be to upgrade to version 11.