If you want to backup the settings of HostName Commander (such as the current selection of its options, the positions of its windows, the licensing information currently entered in it), you can use Windows Registry Editor to backup the appropriate registry key into a file.
IMPORTANT: Registry Editor is a powerful system tool that should be used with care. Be very careful not to delete or change anything there unless you know what you are doing, because you can make your computer unbootable!
Specifically, to backup the setting of HostName Commander into a file, run Registry Editor (RegEdit.exe), and select the following key
Then choose File - Export Registry File from the menu of Registry Editor, make sure that the option Export range: Selected branch is selected, and enter a file name in which to store the settings.
If you later decide to restore the settings from the file, locate the file with Windows Explorer and double click on it with the mouse. You may be prompted to confirm that you want to import the settings into the registry.
Keep in mind that the procedure described above does NOT backup the host name and IP address information! To backup that information, use the built-in Backup command of HostName Commander.