suddently this is written in red:

Nov 2, 2012 9:01:20 PM java.util.prefs.WindowsPreferences <init>
WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.

it happens in code:
myBus = new MidiBus(this, MIDIInputNum, 0);

using " themidibus" library.