Importing and Exporting Registry Keys
Registrar Lite allows you to import and export Windows registration files with a .reg extension, the format which is also used by Regedit.
Importing registration files
To import a registration file, choose Import .reg file from the Help menu. You will be given the option to browse to your .reg file. After selecting, the contents of the file will be imported (merged) into the local registry.
Exporting registration files
In order to export a registry key, ensure the key you wish to export is selected (its title will also be displayed in the address bar). Now choose Export .reg file from the Help menu. If you wish to export the entire registry, select the top of the tree (titled Registry). Note that only the rootkeys HKEY_LOCAL_MACHINE and HKEY_USERS get exported because all other rootkeys are included (they can be found as subkeys of any of these two rootkeys).