You can only install one or the other. You cannot have both versions on the same machine.
I have both the 32bit and 64bit versions on my machine and Har-Bal 3.0 is not working.2017-04-092017-04-09/wp-content/uploads/2016/12/harbal-logo-lng_trans-drk-300px.pngHar-Bal | The Scientific Audio Mastering Solution/wp-content/uploads/2016/12/harbal-logo-lng_trans-drk-300px.png200px200px
You can immediately view the problem areas of your stereo files and Har-Balize the corrections. If you are serious about your mixes sounding their best, then Har-Bal should be a standard application used in your studio to test every song before final limiting (loudness) is applied. You can’t go wrong!