The "Top" designation is crucial. Regular Hyper software might have bugs regarding Dolby Audio passthrough or blind scan accuracy. The Hyper Software Top is usually the final, stable build released by the top developer teams (often linked to groups like Hacker Team or Giga Team). It represents the end-of-life perfection for that hardware generation.
No single "Software Top" existed. It was a moving target. Forums like Sat-universe, Tele-Satellite, and Alsat would release "packs" every few days: echosat fuji box 9100 hyper software top