It is unlikely to function reliably on modern operating systems (e.g., Windows 11 or recent macOS versions).
A valid Cubase Artist 6.5 license is mandatory to use the 6.5.5 installation. Steinberg Cubase Artist 6.5.5
Updated VST Amp Rack 1.5 with new stompboxes and signature presets, plus DJ-EQ and MorphFilter. It is unlikely to function reliably on modern
Cubase 6.5 is now considered unsupported software by Steinberg. Steinberg Cubase Artist 6.5.5