Why would you like to do that: Cubase x64 and Reason 5 x32 ReWire are no compatible. Also I had a lot of errors with rewire mode and Cubase 5 so I don't like ReWire. I had a lot of old projects made in Reason that I would like to recreate. I produce in Reason and Cubase. To get the sound from Reason I bounce audio or record output.
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Cubase Transport MIDI Clock Set Up