-This tag (which must be enclosed in a @c <process> tag) adds a
-new property to your actor.
-
-(either its @c
-argv array in MSG or its @c args vector in S4U). Naturally, the
-semantic of these parameters completely depend on your program.
+This tag (which must be enclosed in a @c <actor> tag) adds a new
+property to your actor. You can retrieve these properties with
+MSG_process_get_property_value() or simgrid::s4u::Actor::property().
+Naturally, the semantic of these parameters completely depend on your
+program.