Just an FYI... I found a pretty decent free online icon editor...who doesn't like free.
It does the job for creating ICO files for WinBatch compiled programs.
https://redketchup.io/icon-editor
I guess the "cloud" is all the buzz in the last few years so why not an icon editor as SaaS. Thanks for the link. I will have to give it a try.
Nice. I had posted CLR code to extract icons from applications which are saved as .png. The link you provided did a nice conversion to .ico
Wow. It's really quite good.