I found a nice Java library which allows me to write a powerfull MIDIbox SID editor, running on every operating system which supports Java: Windows, Mac OS, Linux, Solaris, etc…
http://www.overwhelmed.org/jsynthlib/
It comes not only with some components for the editor panel, but also with a SysEx librarian - nice to manage all the sounds 
Although I never programmed in Java before, I was able to create a complete panel in few hours However, the SysEx structure and MIDI interaction has not been programmed yet, but it will follow in the next days or weeks - we’ll see
Best Regards, Thorsten.
