resources - How to change executable icon from c# code? (not my app icon)

Question

How can I change *.EXEs icons from c# code (not my main app icon but from that app i want to change the icon of another exe).

I eventually would have to change the icons for A LOT of files so I am looking for a fast and good performance way to do it.

I have been googling for 30min but all I found is how to set the icon for the app in VS.

Answer 1

You need to call the Resources API methods, as described here.

Specifically, you need to call BeginUpdateResource, UpdateResource, and EndUpdateResource.