The safest and most legal way to obtain the software is through the official MikroElektronika website or authorized distributors.

Look for the software you need and check if there are any free trials, student discounts, or open-source alternatives available.

You can download Mikroc Pro for dspic v6.20 from the official website of MikroElektronika, the company that develops and distributes the software. However, I couldn't find a direct link to the specific version.