>>428
開いてるページ右クリ([Document Popup Menu])からなら↓
Item, "Open With IE"=Execute program, "path","%u"
履歴右クリ([History Item Popup Menu])からなら↓
Item, "Open With IE" = Copy & Execute program, "path","%c"

アクション一覧 - Opera Wiki
https://web.archive.org/web/20150219042008/http://ja.opera-wiki.com/%E3%82%A2%E3%82%AF%E3%82%B7%E3%83%A7%E3%83%B3%E4%B8%80%E8%A6%A7
の「INI file variables」参照