A long thread started by "the Elf" at Cloudy Nights, that includes datasets from the Elf himself and other CN users. StarTools processing notes can be found here as well.
Users may have to "unquarantine" StarTools, before the OS allows it to run.
The 32-bit version is meant for older computers with less memory and/or a 32-bit Operating System.
The goal of color balancing in astrophotography, is achieving an accurate representation of emissions, temperatures and processes.
The Color module allows for various ways to calibrate the image, including by star field, galaxy sampling and - unique to StarTools - the MaxRGB calibration view.
You can convert everything you see to a format you find convenient. Give it a try!