https://bugs.winehq.org/show_bug.cgi?id=46043
--- Comment #1 from Hildo Guillardi Júnior hildogjr@gmail.com --- I forgot, between the steps 3 and for: 3. Place the folder/files in the installation program folders `plugins` and `update`. 3.1 Open the 'Plugin Manager': Plugins >> Plugins Manager >> Show Plugins Manager 3.2 Install the plugin 'MarkdownViewer++' 4. Open a *.md file