Sentinel Emulator 2007 is a third-party utility that emulates Sentinel dongles (hardware-based license keys) used by software vendors to protect proprietary applications. It attempts to mimic the behavior of various Sentinel (formerly Rainbow Technologies/Hasp) USB or parallel-port license keys so protected software will run without the original hardware key present.
The graphics were rudimentary, relying on ASCII art maps and simple vector polygons to represent data nodes. Yet, the immersion was palpable. The software synthesized a robotic voice (using the crude Microsoft Sam text-to-speech engine) to bark updates: "Intruder detected. Sector 4. Firewall active."
: You must first have the physical dongle to "dump" its memory. Tools like Sentinel Dump were commonly used to create a Solving the Table (Cell Data)
The problem: Dongles break, get lost in office moves, or become obsolete when parallel ports vanished from modern PCs. Thousands of businesses found themselves owning valid software licenses but unable to run them because the physical key failed.