A program to set up another program?

Question

WPF

There are two WPF projects, is it possible to make it possible to configure the second from the first project. That is, two separate programs, one of which configures the other.
For example changes the background of a form.
Is this possible to implement?
Can I have an example?

Answer 1

Pipes , Sockets - we take, we listen with one program, we send messages with another. In principle, WCF is also possible, even better, but you need to be ready to understand its model and ideas. In general, look for C# IPC or Windows IPC, there are plenty of options.

Answer 2

INI files, json, registry - one reads, the second changes.