Custom Installer: What files do I need?

I'm using VS 2010 Express and I've written an app that I want to deploy. I've decided to use a custom installer a开发者_开发技巧nd I need to know, other than my .exe and .dll files, which files from the release\bin folder do I need to copy to the installer?

If its a library/windows executable, that is all you need. If its web app, you need other files (aspx, config, js, css etc.)