software is the programming interface specifically designed for the TK-7180/8180 TK-2180/3180 series radios.
Kenwood does not typically provide KPG-99D as a free public download. It must be purchased through authorized dealers: Kenwood Kpg-99d Software Download
If you want, I can:
: It also supports high-power versions, such as the TK-7160H and TK-8160H . Kenwood Kpg-99d Software Download