@André-Programmeren said: As far as I remember I stopped and re-started Notepad++ Notepad++ saved it’s current language for that file (plain text) in the session config, then used that saved session config when you restarted. (This is a critical feature when one extension can have multiple meanings, and you have overridden the default language for a particular file) OTOH, if you close the file, Notepad++ discards meta-information, like what language was previously served, and so re-applies its internal rules and will see the UDL extension when you re-open the file.

@saintleningrad-prog said: Select text, or place the cursor inside a ^^…^^ tag, press Ctrl+Shift+E Just a head’s up: that’s the same default key combination that decodes HTML entities when HTML Tag is installed. Since plugin commands are mapped in alphabetical order, and the most recent mapping prevails, having both installed will silently block the EncTag’s plugin shortcut from functioning: [image: 1787355567929-enctags-v020-shortcut-conflict.png] One more thing: the text you are passing to the About message box (here) contains the literal Unicode character U+2013: EN DASH. Since the Unicode literal is inside a character string, the compiler interprets everything between "..." as if it were encoded in the operating system’s default, single-byte code page (usually Windows-1252 on English- or European-language PCs). When shown, the emdash becomes the string of nonsensical bytes \xe2\x80\x94: [image: 1787355726977-enctags-v020-mojibake.png] You just need to escape the Unicode literal, i.e., "Ctrl+Shift+E \u2013 ..."