HFS 3 is a "console" program now, and it will run in powershell or in older "cmd" (command prompt).
Any method that can bring a console program to the system tray will work also for hfs3.
I'm not aware of an official way to do that, but I'm quite sure there are free programs out there to do it, because i've been doing it like 15 years ago.
Consider anyway that if you need it to be always running, "system tray" is not the way to go, but "services" is your keyword.
There are some ways to transform any console program to a service, both from microsoft and 3rd parties. I didn't focus on this aspect but I surely hope to make things easier in the future. Even producing a guide would be a nice start.
