One of the many posts Jim has responded to similar questions: https://yabb.jriver.com/interact/index.php/topic,129370.msg929303.html#msg929303 in fact the whole topic is a good one: https://yabb.jriver.com/interact/index.php/topic,129370.0.html
The catch is the license has to match the type of license you have. For example if you have a Windows license, then it'll work on Windows machines. If you have a master license then you can install and use it on Windows, Mac and Linux machines.
Hi, I don't need to restore a licence, I need to buy a new license for old software if needed. Also I did see the versions offered here but was looking for some other versions.
However, this isn't possible. They don't sell old licenses for old versions, only the current version (which is Media Center 32) is available for sale (and current licenses won't work for old versions). This question has come up a few times over the years and I'm sure if you search more of Jim's posts you can see him shooting down inquiries on selling old licenses.