Allow us to use it maybe?
I can download it but I can't open it. Why not use zip like the rest of the world instead of RAR which doesn't work.
Traffic Travis is an executable (.exe) file. If you get an error asking you which program to install it with, that could mean the downloaded file was incomplete or corrupted.
Please clear your browser's cache of all downloaded files, then download the latest version of TTV4 through this link: https://www.traffictravis.com/software/traffic_travis_v4.exe and activate it using your code.
If you need help with clearing your browser's cache, then please see this FAQ: http://feedback.traffictravis.com/knowledgebase/articles/965821
Let me know if you need any further assistance.