Download and install DjVu Shell Extension Pack
https://www.cuminas.jp/en/downloads/download?pid=5
Add the following registry entry
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\SystemFileAssociations\.epub]
[HKEY_CLASSES_ROOT\SystemFileAssociations\.epub\She llEx]
[HKEY_CLASSES_ROOT\SystemFileAssociations\.epub\She llEx\ContextMenuHandlers]
[HKEY_CLASSES_ROOT\SystemFileAssociations\.epub\She llEx\ContextMenuHandlers\ShellImagePreview]
@="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}"
[HKEY_CLASSES_ROOT\SystemFileAssociations\.epub\She llEx\{e357fccd-a995-4576-b01f-234630154e96}]
@="{C7657C4A-9F68-40fa-A4DF-96BC08EB3551}"
no spaces in She llEx
