Settings

Here you can export your TreeSize Professional user settings or import user settings that were exported before. Additionally you may reset your user settings to the factory settings.

Explorer Context Menu

With the first checkbox you can decide if TreeSize Professional should appear in the context menu of folders in the Windows Explorer. A click on this menu item will then start TreeSize Professional which will start scanning the selected folder immediately.
The second checkbox allows to create an additonal context menu entry that starts the TreeSize Professional File search.

Explorer Column

Use this option to enable or disable the "TreeSize" column for the detailed view of the Windows XP/2003 Explorer which shows not only the file sizes but also the folder sizes. If enabled you can control the unit and the number of decimals here. The Explorer column is not supported under Windows Vista or higher because Microsoft removed the interface for adding columns to the Windows Explorer.
Note: The TreeSize column can only be configured here if you choose "Install TreeSize column for Windows Explorer" within the TreeSize Installation. Otherwise this option is disabled.