Some versions of Free IP Switcher are released as "freeware" for personal use, meaning you don't actually need a code for basic functionality.
Use a mobile hotspot or public Wi‑Fi temporarily free ip switcher registration code
Depending on your goal, there are easier ways to manage your IP address: Some versions of Free IP Switcher are released
are released under licenses like the GNU GPL, meaning they are free to use, modify, and redistribute without any registration key. Freeware Distribution : Applications such as Free IP Switcher by Eusing Software meaning they are free to use