http://dl.dropbox.com/u/26684258/ProceduralMidi_MIDIOutput.zip
I added to drake7707's program the ability to choose which MIDI output device you select, which means it can be used with MIDI loopback devices, such as LoopBe.
A quick guide to getting this to work:
1) Install LoopBe. Download link is here.
2) Inside ProceduralMidi, you'll see another drop-down box below the instrument box, which probably currently says "Microsoft Wavetable GS Synth". Change it to "LoopBe Internal MIDI".
3) Set your VST host or whatever program you're using to use LoopBe as an input MIDI device.
I've already been able to output notes directly to synths in FL Studio.
p.s. drake, would you be interested in making ProceduralMidi a Google Code\Codeplex project?