KX77FREE has announced 64-bit beta releases of its free Windows plug-ins. The x64 zip files replace the x86 setups (*.exe) in the download table.
These plug-ins are sufficiently stable to be used as they are but they are not finalized. They have been tested in Cubase, FL, Reaper, Studio One and Live.
If you download these files you can help KX77FREE to finish debugging them on KVR in the Modular Synthesis forum.