XYplorer Beta Club

Hello,
i have installed djvu-shellexts-win64-en-r33333,
so i get thumbs of djvu files in windows explorer and dopus,
but not in xyplorer 15.00.200.
Operating system win 8.1.1 x64.
Does anybody know registry hacks to make these shellextensions known to xyplorer,
or any other solution?