ProntoEmulator does not appear to generate a needed file when run for the first time on a Windows NT installation, consequently crashing. Download this .ZIP file and extract the embedded "pronto.css" file to the root directory of the drive your operating system is installed on.
Early Beta European ProntoEdit v1.04 package including software emulator and SYS v3.5 / APP v4.8b13t firmware, adding timers and custom beep tones. Uses new CCF format. Firmware can be cross-loaded to the Marantz RC5000.