Navigate to https://www.davisit.ca/r in a browser:
Microsoft Edge
The download will start automatically, once complete, you'll see this in the upper-right of the browser:
Click the ... next to the trash icon:
Select Keep.
Click the arrow next to Show more:
Click Keep anyway.
Click Open file and install the client.
Google Chrome
The download will start automatically, once complete, you'll see this at the bottom of the browser:
Click on it and you'll get this screen:
Click More info.
Click Run anyway.
Mozilla Firefox
The download will start automatically, once complete, you'll see this in the upper-right of the browser:
Click on the file and you'll get this pop-up:
Click Ok, and you'll get this screen:
Click More info.
Click Run anyway.