I recently released a new version of the Off Helper.
It runs as a service rather than an application, so this means it still works when the computer is logged out, or locked.
Because it starts up differently, it will hopefully fix issues where the helper doesn’t automatically startup.
You can get the new version at http://hobbyistsoftware.com/OffSetup
It is a beta, so although we have tested it, there may be problems with some setups. Please let me know ( firstname.lastname@example.org ) if there are problems so that I can fix them, and equally let me know if it works well so that I can move it out of beta!