The Quilcom SIM-HG is a synth designed to simulate the sound of Hurdy Gurdies without using samples. There’s no such thing as a “standard” Hurdy Gurdy so the SIM-HG can create a wide range of sounds.
Click on the picture to download the zip which contains 32 and 64 bit plugins (including one which should work in Windows XP), the FlowStone schematic (not needed for the plugins to work), a User Guide and background information.
http://flowstoners.com/quilcom