The registration key you are using does not match the product you are trying to unlock. Please check the email which you received from us with your registration key for confirmation of your product and version number along with download links to the matching software.
If you can't find the email, please contact us providing the registration key you are using and we will be happy to help.
If you have a key for an older version and would like to switch to the latest, you can purchase an upgrade at our online store for NXPowerLite Desktop (Windows), NXPowerLite Desktop (Mac OS X) or NXPowerLite for Microsoft Exchange.
Newer registration keys
It is possible to enter a key which is for a newer major version of NXPowerLite. The software will work as normal but there will be a warning displayed in the About dialog. We recommend always using the latest software to get the best experience, so please download and install the latest version.