I just recently bought (less than half a year) 2 licenses for emClient 6. I have installed 7, and it won’t accept my license 6 #.
What’s up? 
Hello loreleip,
We’re sorry if there has been a misunderstanding of the update model. The current update model is that by purchasing an eM Client license, you get the latest officially released version of eM Client, all the updates related to that version, and one year of VIP support. If you decide to upgrade to a higher version of eM Client or get another year of VIP support, you will have to renew your license here.
Regards,
Maurice