I get a “Class not registered” error when I start SimpleTouch or the Config program.

This error is caused by your windows installation missing the flash Active-X component.

Either use the non-flash version of SimpleTouch FE or install the Active-X component.
Unpack wherever you want and run the included batch-file to register it.
Be aware that it’s potentionally tricky to delete the ocx-file once you have registered it.  🙂