From the website:
"All downloads published here are for our customers and require activation information: customer name and registration key. The registration key is sent to you immediately after purchasing our products."
http://www.add-in-express.com/downloads/adxnet.php[
^]
Any download of a version that does not require activation or purchase would thus be in breach of copyright.
Since nearly everyone here makes their living from selling software in some form, it is very unlikely that you will find that information here.
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