Free licence "not valid"

H. C., User (Posts: 2)

Jan 05, 2018 5:53:42 am EST

After getting a free license key (.txt file) by mail, I copy the content and enter it in the lower field of the form, then push Add.
Then I get a pop-up message saying that the key is not valid.
Tried that with different keys, always the same result.
What do I do wrong?


Conrad, Administrator (Posts: 1653)

Jan 05, 2018 6:00:23 am EST

Hello H.C.,

Please, check that you have the latest version of the Viewer installed. Currently, it's You can download the latest version from here

If updating doesn't help, please let me know because the problem could be elsewhere (e.g. a corrupted Viewer config file).


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H. C., User (Posts: 2)

Jan 05, 2018 6:20:10 am EST

Thsnk you, Conrad for your prompt reply.
I had by error installed v6.5 which still hung around in my downloads folder.
Works fine now.


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