Here are the steps I followed that finally did it:
- You need to create the folder/file structure just like you want it to exist in your installation - in your visual studio project. For example, I needed two folders - x86 and x64, and the same SQLite.Interop.dll under both
- Right click in your project, go to the Publish tab, then click in Application Files. Scroll down (they should be showing as the last items) to your added files, and make sure you change the Publish Status from Include (Auto) to Include.
Should work now.