There are some useful gadgets provided in the Windows Vista Sidebar gadgets. I find the Vista Notes Gadget useful to take down small notes. I recently had to move my data to a new machine and wanted to backup these gadgets. There are some tools that help you take a backup, however if you want to take a backup without using any tools, follow these steps:
1. Browse to C:\Users\<yourname>\AppData\Local\Microsoft\Windows Sidebar
2. You will find a file called Settings.ini. This file contains all the data and settings of your gadgets. Copy this file and save it in your backup drive.
3. In the new machine, replace the Settings.ini with the one you have in your backup drive