In Setup project, difference between adding 'project output' and 'assembly'

Question

I am not sure what is the correct thing to add. In the Setup Project, when one clicks on "View" -> Editor" -> "File System", and then right-clicks and a pop-up appears.

If Project A uses Project B, must I add B.dll (assembly), or the output of Project B?

(Assuming that I have both Project A and Project B in the solution and that Project A has a reference to Project B.)

Answer 1

What is the output type of project B ? if B 's output type is an assembly then adding B as project output or adding B as assembly would be same.

Simply add B as assembly, that should be fine.

Answer 2

Adding Project Output will add what the project outputs, which may be one file or more, of any type. Since you have a project, add its output rather than just a DLL file. This will help if the name ever changes or there are other changes

But if the DLL was a binary from somewhere, then just add it as a DLL.