What are banner or other ad networks for desktop applications?

Question

Monetization

There is a goal to show banners or other ads (it is important to be able to clearly choose the size) in a free desktop application.
What ad networks are there that allow this?
Variants like "register a site in the banner network and broadcast banners to the application through it" are not very good, because they may not follow the rules of the network. Well, or, if there are networks that allow such behavior, I would like to know about them.
It is important that it is possible to work on the desktop (Windows) and that there is no link to any proprietary library from the network, since advertising will be integrated manually.

Answer 1

Here's one I recently came across gamesbannernet.com