2nd that. its emagic sounddiver that you need though as stated if you are on PC its no longer available with the apple merge.
ive seen it on the web for downloading occasionally as free issue. not sure how this fits with legal issues given its discontinued/no longer available but may be worth a look around just incase.
i just gave my copy away unfortunately
failing that ebay may be worth a scan.
it really doesnt add much in the way of control, the main thing is preset file browsing. the pulse is a really simple synth and as such very easy to work with just from the front panel if you have any knoweldge of synths at all.
just roll your sleeves up and spend an afternoon twisting everything
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