one-click script o backup and restore individual registry keys

Question

I have an application that stores some settings in registry. For whatever reason, it loses some stuff on occasion. I don't really have time to figure out what the problem is (it's not even guaranteed that I could) so I'd like to make a one-click shortcut to backup and restore specific keys. I would imagine that this is a job for powershell. Could somebody please tell me how to do this?

Answer 1

Use the Reg Export command to export the key and Reg import to import the data. Put this into a CMD batch file which you can start with 1 click.