How can I activate the context menu entry for TreeSize in the Windows Explorer?

Question / Problem

I want to activate/deactivate the context menu entry shown for TreeSize Free in the Windows Explorer's context menu for folders. I've seen the option with the installer, but do I really need to reinstall the whole application?

Answer / Solution

There is no need to reinstall TreeSize Free in order to change the setting for the Windows Explorer's context menu.

On the 'Options' tab, you can simply change the option at runtime.