Sharing code between 2 projects without a dll

Question

How can I have code-sharing between two projects without making a dll?

The issue is: I have a tool that syncs users & groups from LDAP to a database.

Now

Answer 1

Necromancing - As per Visual Studio 2017:

You can create a shared project, and then reference the shared project in another project.

It will use the framework-version and libraries from the project you reference the shared-project from. You can also use the same shared project in multiple projects, provided you get no conflict.

This is basically statical linking on a source-code level.
This also works with HTML&JavaScript-files (specifically, it works with publishing), but with HTML & JS files, you will run into problems while debugging...

It's under "Classical Windows Desktop", but you can also use it for .NET Core etc.