Took a quick look at TogetherShare Data Recovery Pro 7.1 in a V/Box Win7 32-bit VM... The activated app seems to be portable, and will run after booting into WinPE, so that's an option if you wanted to create a WinPE USB stick etc. Note: you will have to use WinPE's command line interface to navigate to the app's folder & to start the app.
docs.microsoft[.]com/en-us/windows-hardware/manufacture/desktop/winpe-intro
For those folks not seeing the key icon on the menu bar, the key currently is stored in the program's folder, so if you have an older version, remove or rename it first. There's also a registry key under HKLM\ Software\ Togethershare\ for the key -- while it's not used with this GOTD, it might have been for an earlier version, so you can check and if needed clear that.