Download Thru Explorer Addin
The latest version of the Thru Explorer Addin is actually packaged with the Thru Outlook Addin
You can get the latest build from the following link : https://softwaredelivery.thruinc.net/Publishing/Default.aspx?CollectionID=3LCYSCOKZCT2U
If you would like an msi of just the Thru Explorer please contact support at helpcenter@thruinc.com