It is same to implement commands, creating custom interface in registry-free and registry addin. You can still use the same codes in registry-free.
clarify: no toolbar for VS. long time ago (long before 2010), the wizard did created a toolbar. But no toolbar anymore. The wizard just provides you the template of project to create addin.You will need to create commands, add interface yourself.
But, I think the AU material will be of much help for you. My colleauge Philippe prodduced some templates of custom interface, commands, events for developer's convenience.