Okay, so I learned something new today
Here's the manual for the FSH3 Remote Software (from 2005!)
I have searched our internal systems but didn't find the FSHRemote 2.12 software shown in the video. I did find a file called "fshremote_2.12.4.exe" on one of those somewhat sketchy "download software here" sites, but obviously I can't vouch for its authenticity or safety.
I've sent some emails about this and will let you know what I hear, but I strongly suspect that even if someone does have an installer, it's completely unsupported at this point.