As title says - every ICO file I try results in an error 'cannot use this file as a custom icon file' or thereabouts.
Then there's Axialis IconGenerator - except that either doesn't, or I can't find how, you take an image of your own, open it, and save is an ICO. Seriously, no way out - unless I want to use a New File icon as my games icon :/
Anyone else having this problem? Could you offer advice?
Unless there's something wrong with this version (and I can't see why there would be) what you need is a program that can save to ICO format.
GraphicGale (free) seems to be able to do it, but remember that there are defined sizes fo an ICO.
Otherwise find an online ICO converter site, upload your image and download the ICO file.
bx83 can you upload a ico file that causes the problem you are seeing?
GIMP also offers saving a file as .ico. I am not sure, but I think Aseprite does too.
I use this site to covert my images
FavIcon generator
http://www.dynamicdrive.com/
All good I think. I created and saved the icon with IrfanView, and it's partially worked. Waited about a minute while recording that video, and then the icon *was* there. So god knows :/
https://bluekeystudios.com/img/icon_demo.webm (https://bluekeystudios.com/img/icon_demo.webm)
https://bluekeystudios.com/img/icon_demo2.webm (https://bluekeystudios.com/img/icon_demo2.webm)