The software is primarily available through authorized dealers and official support channels:

Icom CS-F3000 is the official programming software for Icom IC-F3002 VHF and Icom IC-F4002 UHF series two way radios. Radiotronics UK

:

Just when John was about to give up, he stumbled upon a forum post from a fellow ham radio operator who claimed to have successfully downloaded the software from a little-known Icom partner website. The post included a cryptic link that looked like it might be legitimate.

Budget for the software. It is a one-time investment that protects a $300–400 radio.