de la página del plugin:
Cita: Each ZIP file below contains two different DLLs: xxxA.dll is an ASCII version of the plugin to be used with the older ASCII versions of NotePad++, xxxU.dll is an Unicode version of the same plugin to be used with the new Unicode versions of NotePad++.
Only one of the two DLL should be copied in the plugin folder and used at a given time depending on the version of NotePad++ you are using.
así que parece que debes de usar el dll Runme
u
PD: muevo esto al foro de editores, esta no es una pregunta de html.