The KEPServerEX installer download is available from the My Kepware web portal:
https://my.kepware.com/mykepware/
It will be necessary to create a new My Kepware account if you have not already done so. When you log in to your My Kepware account, you will be at the My Kepware Home page. In the left column, you will see a link to download the latest release. You can access all of the features of KEPServerEX with this installation, including the Thingworx Native Interface.
For more information on installation of KEPServerEX, see this guide: https://www.kepware.com/en-us/products/kepserverex/documents/installation-guide.pdf
