So I downloaded IconChanger and made a backup of the engine icon and created a new one for my project.
When the game is published, it doesnt change the icon when the game is running or in the tray, but it does for the exe file.
However when I compile it into an installer, I can overwrite the tray icon - Just not not the preview icon (by which I mean if you hover your mouse over an inactive / active window in the taskbar a preview is displayed) The icon displayed is the Acknex icon.

How can I overcome this?

I read there is a SED Plugin for this, where can I find that to try it out?

Also iirc (but that was maybe in older window's) that when you see the icon you sometimes it still has the same thumbnail (so it looks like the icon of your game in a folder hasn't changed). If that is the case, you need to delete the thumbs.db I think (it is hidden iirc), so windows can make a new one.

as I remember the SED plugin has been buggy in A8 (A7 was fine). is it fixed?

try 32 or 16.ico it works.

great thanks.

Emre, Thanks but Its not working for me
I've been trying this on and off for the last month and read that from the manual many times
I placed my Icon files in the work folder with the titles 16 / 32.ico and no such luck unless I alter them manually through an external program
Is there some secret step I haven't followed yet?

@ Scifi, I dont have that option in my plugins
Does anyone know where I can locate the plugin to install it manually?

Reinstalling gamestudio probably works so you have plugin.

this is a pretty fresh install.
Does anyone know where I can find the plugin, and download it?

So I converted the icon back to its original state, and am trying the 16 / 32 icon feature that comes with A8 Pro - But To my surprise the exe icon didnt change back in the project folder - but when I run the game I see the A8 icon in the tray and in the preview

EDIT: I know the revert worked - But this is so strange