why do you want to get rid of it? hh.exe is a windows program, that runs a "help wizard" It shouldn't be a problem file, either it works or it doesn't, and the only time it should work is when you run the help wizard.
Are you looking to turn it off to stream line your system? If so I don't think it will help much as it doesn't run unless called, so it shouldn't be using any CPU cycles.