Error message when you try to enter a product key to activate Expression Media: "The key you have entered is not valid. Please enter a valid product key."

When you try to enter a product key to activate Microsoft Expression Media, you may receive the following error message:This problem occurs when you do not add hyphens between the individual sections of the product key.

This problem occurs because current versions of Expression Media have a single text box in which to type the product key.

Note In most Microsoft products, you type individual sections of the product key in separate text boxes. The product adds the hyphens automatically.

To resolve this problem, manually add the hyphens between the individual sections of the product key.

This behavior is by design.

You can install the trial version of Expression Media without a product key. To download the trial version of Expression Media, visit the following Microsoft Web site: