registerFileAssociation(".*\\.avi$", "vlc {file}");
registerFileAssociation(".*\\.mp4$", "vlc {file}");
registerFileAssociation(".*\\.mkv$", "vlc {file}");
registerFileAssociation(".*\\.avi$", "vlc {file}");
registerFileAssociation(".*\\.mp4$", "vlc {file}");
registerFileAssociation(".*\\.mkv$", "vlc {file}");