XStream does not activate

This article covers the most common problems which may occur during product activation, and how to solve them.

Message Instruction
The entered key is not a valid license key.

Please check the entered license key for typing errors. The license key is 65 characters long. The safest way to enter the key is to copy-and-paste it from your license e-mail. Fore more information, see Activating XStream.

You can use this key for ... This text tells explicitly which product and which product version the entered key does match to. Install the named product version and retry the activation.
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