Kurzweil KME61 Musician's Manual page 22

Chapter 2
SP2 Getting Started
14) Find out where "sp2series.inf" located and press "Open" button for open it.
15) Press "OK" button again for further steps.
16) Now make sure uncheck "Show compatible hardware". Select "Kurzweil"
in manufacturer, and select "Kurzweil SP2X MIDI" for SP2X or select "Kurzweil SP2 MIDI" for
SP2. Finally press "Next" button.
17) You can see warning window, because this driver is not signed by Microsoft, It's ok ignore it.
Click "Yes" button.
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