I'm a little confused by the documentation, but what exactly do I need to do to put a registered copy of TCMD v21 on a USB Thumb Drive that I can run on someone else's computer without needing to install the product on their machine? I've got a thumb drive with a bunch of freeware diagnostic and recovery tools, including a bootable version of Windows PE, and instead of or aside of running CMD.EXE, I'd like to have TCMD/TCC on that thumb drive which I can run for any command line usage needs. Obviously I don't want to install anything on the target machine's hard drive, so I just want TCMD/TCC to run directly from the thumb drive (and of course be registered). Does the "USB (Portable) Key" option actually install a portable copy of TCMD/TCC on the USB drive, or does it just store registration information on the USB drive and I must do something else to actually install/copy the software to the USB drive? Also, would it still be possible to "Unregister" the USB drive just like with a computer registration, in case I want to use a different USB drive in the future or want to free up that registration? Just curious about what I should do to create a totally portable version of TCMD/TCC to use on someone else's computer without installing anything on their computer.