After installing or activating a license, it is possible that you get this error message. There are 2 possible causes for this situation:

1. The license codes where activated for a different computer. When activating a license you always have to make sure that you use the Machine ID of the computer on which CardExchange® is installed and will run.If your license was activated by mistake on the wrong machine ID, please contact your CardExchange® reseller to obtain a replacement license.
2. The license codes are for a different CardExchange® version than the one you have installed. You have to install the correct CardExchange® version or upgrade your license. Please contact your CardExchange® reseller to ask what version you need. Be aware that major upgrades of CardExchange® are not free. Before you upgrade CardExchange®, ask your reseller whether an upgrade license is needed.

In addition to point 2, if you have a CardExchange® version 2 license you need to make sure that this version is installed on your computer. Be aware that CardExchange® versions 2 are not supported anymore!. If you have a version 3 license, you can use this license as well with version 4 and version 5 of CardExchange®. For using version 6 of CardExchange® you need to order an major upgrade from your reseller.