I also tried all the tricks people suggested on other forums about editing registry files, etc, to get it to work on windows 8. None of it worked.
The problem is that techstream will run on 64bit windows, but the drivers for the cable will only run on 32bit.
The easiest thing is to just run a virtual machine (like
VirtualBox ) and install windows XP on that. It sounds difficult, but its actually really easy to setup and use. If you are confident enough to format a computer, then you will have no trouble installing a virtual machine. The virtual machine just runs as a window on the desktop, not like running dual operating systems.
You don't even need a copy of windows XP, as you can download a virtual drive with it installed direct from
Microsoft. You just need to be running a legit copy of windows 8 as it does an authentication check before letting you download.
Here is a
link that outlines everything. This is what I have been doing and techstream runs great through the virtual machine.
Note: If you are running the virtual machine on a laptop you will need a USB mouse, as the virtual windows XP doesn't like the touchpad