The settings on this page let you set Opus to run automatically when Windows starts up. You can also control what Listers are opened automatically when Opus starts, whether on Windows startup or if you start it up manually later on.

What happens when Opus starts up
Always perform startup action

Normally the "startup" options only apply if Opus is started without a specific folder to open. For example, if you launch Opus by double-clicking on a folder icon on the desktop, only that folder would open and any other Listers that would normally be opened won't appear.

If you turn on the Always perform startup action option then the configured startup action will always occur, whether Opus is opening another folder or not.