Development of `` Snes9x '' began in July 1997 when Snes96 's Jerremy Koot and Snes97 's Gary Henderson merged their respective emulators to create Snes9x .
The development of `` Snes9x '' began in July 1997 , when Snes96 's Jerremy Koot and Snes97 's Gary Henderson merged their respective emulators to Snes9x .