How do I deal with DLLs

Hello, I'm quite new to NSIS and everything related to windows. I need to provide an application for windows and I struggle with the basics (can't find much literature somehow...)

From my understanding, these are the steps I need to perform to be able to provide a valid application:

1. once my application is built, I need to list its dependencies (DLL) with something like lucasg/Dependencies
2. The dependencies need to be copied to a folder with the installer and the executable
3. The installer, once ran, needs to register all the copied DLLs (with something like:

insertmacro InstallLib REGDLL ...

)

Am I correct ?

Not all DLLs have to be registered, only COM stuff etc.

The developer of the DLL knows.

Thank you for your reply.