I have an AKAI MIDI controller keyboard (no speaker or sound output) and I would like to route the MIDI output from the controller to the MS synth. so that I can hear the notes. Can MIDIMapper do this (if so, how) or do I need to use some sequencer software?
No you can't use MIDIMapper (CoolSoft version or the bundled MS one) to route a MIDI-IN to a MIDI-OUT. MIDIMapper only shows a "well-known" MIDI-OUT port that can be dynamically forwarded to another MIDI-OUT (an output selector).
You can use MIDI-OX to get what you need. It needs some time to get comfortable with, but it worths the time spent.
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