Susie plug-in ?

Susie plug-in is a specification of DLL (dynamic loading library) for decoding images and archives popular in Japan. The specification is invented for loading images by a image viewer "Susie" by the same author of that.

Now many Japanese viewers support the Susie plug-ins for loading images. And Miruno PC Photoframe also supports this. Famous image formats are originally supported by the Miruno, but you can use Susie plug-ins to load images of rare formats.