Is SSG 3.6 available on a CD or should I always purchase a new licence each time I reinstall my OS or change a computer?
You can download the software from the official website, if you plan to reinstall it on another computer or perform a fresh installation. After the software has been downloaded, use the registration info obtained from the developer to register the application.
Download page: http://www.anixsoft.com/download.html
If you need additional information, contact the developer of the software using the email addresses posted on the Contact Us page: http://www.anixsoft.com/contact.html