The dongle is necessary to ensure authorized usage of the program. If usage did not require a dongle, it would be possible to use illegal program copies. For you as a registered user this would mean that the continuous and customary advancement of Wings Vioso RX could no longer be guaranteed for a lack of financial means gained by selling the program. This is a decisive factor for a high-quality niche product such as Wings Vioso RX. We ask for your understanding and are sure that the advantage will ultimately outweigh the disadvantage, e.g. by receiving high-quality support and regular updates.
Installing Wings Vioso RX on a number of computers is no problem. In this case you can use the USB dongle as an "ignition key" with the corresponding computer you currently want to use. If you want to run Wings Vioso RX simultaneously on a number of computers you can buy inexpensive additional licenses. More about this in Versions and Licenses.