Deep Sky Stacker (FREE) remains a one of the most popular pre-processing applications for Windows. Stacking and saving your data with these settings is essential to getting good results from StarTools.
When applying the important pre-processing do's and don'ts when using StarTools with any stacker, you will want to configure Deep Sky Stacker specifically in the following manner.
With all the above settings made, you can then safely stack and (assuming you used a DSLR or OSC) import your dataset into StarTools as "Linear, from OSC/DSLR with Bayer matrix and not white balanced".
Please consult the "Important dataset preparation do's and don'ts" section for further advice.
One online tool for BASE64 is Motobit Software's BASE64 encoder/decoder.
The Heal module was created to provide a means of substituting unwanted pixels in an neutral way.
Any other tools on the market today simply approximate the visual likeness of such star spikes and 'paint' them on.
You can convert everything you see to a format you find convenient. Give it a try!