How do I use custom placeholder advertisements?

[OhHelloThereImTheGuy]

This isn’t exactly the most user-friendly description of the solution, but someone posted one here:

Why not profit from escargot?

why did you deleted it? anyways: I use Resource Hacker. You have to go into the Messenger folder, find the DLL “msgres” and open it with RH. There, select the directory “4000” and go to “1472 : 1033”. Now right click and select “Replace resource” and swap.