The difference between a package for evaluation and a package created for our customers is that only this last one includes the H.264 codec. Using the Production Version downloadable from your customer area means that you will be able to use the H.264 encoding, provided that your client has it. Hence an uninstall and reinstall is requested server side. If you have further questions about that, or any other topic, don’t forget you can open support tickets in the customer area.
