Now that TU can backup individual Applications, having the ability to make "emergency"-Backups of the entire Registry would be nice.
Somethink like the ERUNT (http://www.larshederer.homepage.t-online.de/erunt/), where the entire Hives are dumped uncompressed, and can be restored on a running machine (the tool uses "RegReplaceKey", afaik), or by booting a recovery-system, and simply copying the files back.
