Mac users interested in Kikaxxe osx generally download:
KikAXXE is now available for download! It supports RTAS, AU Instrument, AU Effect, VST Instrument, and VST Effect plug-in and standalone application for Mac OSX (PPC and Intel), and RTAS, VST Instrument, and VST Effect for Windows (XP or Vista).
The latest version is 1.1 and includes MIDI out for both the step sequencer and drum sequencer under VST and RTAS.
