JUNO6
Juno 6 is an VST based virtual Analogue Synthesizer for Windows written in C++, that emulates the sound technics of the original Roland Juno 6/60 Synthesizer. The project itself is based on the ultramaster juno 6 linux sources.
The source is released under the GNU public license. In short this means:
Make sure you have understood the licensing issues before you download anything.
Feel free to do whatever you want with the source, as long as you follow the license rules.