These are the functional verbs of the early digital media age. They refer to the three stages of interacting with hardware (likely a capture card or USB microscope): the live feed, back the recording, and (capture) a still image or video file. The Era of "Mystery Drivers"
If this is a driver for a USB microscope or "Scope" device: www51scopecn files setuprar view play cap install
Once the files are extracted, you can proceed with the installation. These are the functional verbs of the early
It looks like you’re trying to interpret a fragmented file/command string: back the recording
file. It was a time when users had to understand the "guts" of their operating system just to make a simple camera work.