How can I run TntConnect on my Mac?
Step 1) You need to install CrossOver Mac. This is required to run TntConnect on macOS.

Step 2) Download "SetupTntConnect.exe" from the "Downloads" section of this website.

Step 3) Start CrossOver, and click "Install a Windows Application".

Step 4) Click on "Select Installer", and then "Choose Installer File..."

Step 5) In your "Downloads" folder, select "SetupTntConnect.exe".

Step 6) Click "Continue", and then "Install".

Step 7) If prompted, about the "developer cannot be verified", click "Cancel".

Step 8) Follow all the normal prompts to install software...

Step 9) When you're all done, CrossOver will provide you an icon to start TntConnect.

Any final hints?
Hint #1) You can drag this icon to your Dock so that it's easy to launch TntConnect any time.
Hint #2) If you have the old "TntConnect for Mac" installed, it's recommended you delete TntConnect from your "Applications" folder, and any links to it from your Dock.