It's well to note that you can save the whole registry using the export, and that you can save individual keys as noted. It's always well to have a backup.

The biggest problem with the exported backup is that it will never remove anything. It will put back what you had, but it won't erase any new mistakes (new keys) you may have made.

Should also note that everything in the Registry IS CASE SENSITIVE. If you type upper/lower case where it should be the other, it's broken. A key also cannot have spaces. If the example shows no space, DON'T PUT ONE IN just 'cause it looks nicer. You have to "spell" everything exactly right.

John