Hello japfap66,

As everything is embedded in Blacksmith project, just save your projects and your exported/external images on your USB Stick and leave the program "as it" on your work PC if it was what you expected. If your question was to use Blacksmith3D from a USB Stick, it works on demo mode, i did not tested activation. Maybe Blacksmith3D can answer on this point (i don't know the reference point for activation process, if it's based on disk serial or everything else), I did just made a copy of my original BS3D folder on a USB disk and launch it on another PC (from the USB Stick) and it works.

Hope it helps,

Best regards,