accented parameter wrong in plugin function

"diamantsus-/[email protected] [power-pro]" <[email protected]> 26 Jul 2019 19:31:02 +0000

Newsgroups	gmane.comp.windows.power-pro
Message-ID	<[email protected]>

In PowerPro unicode, when i pass a accented string parameter to a plugin function i get strange symbol.
I trye to use exec.unicode(1) but not work.
How to solve?