Licensing
After installing Microsoft Expression Encoder or after clicking Enter Product Key on the Help menu, a dialog box opens that contains two options:
I have a product key and want to license Microsoft ExpressionEncoder Choose this option if you have a valid product key and want to enable full licensing rights to your copy of Expression Encoder.
**Continue using the trial version of the product **The trial version doesn't require you to enter a key, but after the 30-day trial period ends, you will be prompted to enter a valid product key to continue using the product. If you do not enter a product, the application reverts to Expression Encoder Express, which is a light version of Expression Encoder.
Tip
If you experience any problems with entering your product key, please contact Microsoft customer support.