Since Tachosoft 23.1 was designed for Windows XP/Vista/7, you may need to run it in compatibility mode on modern systems:
before installation, as these programs often flag the software as a false positive. System Requirements Tachosoft Mileage Calculator 23.1 Free Download Free
The Tachosoft Mileage Calculator 23.1 requires the following system specifications: Since Tachosoft 23
Very accurate for interstate and primary highways. However, local roads or very new subdivisions may be missing. Tachosoft Mileage Calculator 23.1 Free Download Free
Yes, the North American edition covers all US states, Canadian provinces, and major Mexican highways.
No. Map updates stopped for version 23.1. To get newer maps, you would need to purchase Tachosoft 24 or higher.