That one was made with Cubase 4 as host sequencer,
Vsti Plugins used were:
freeware:
Synth1 by Ichiro Toda - http://www.geocities.jp/daichi1969/softsynth/ - still one of the best sounding synths for my demands followed by sylenth
Peach by tweakbench - http://www.tweakbench.com/peach
payware...