I have installed the Calendar plug-in and it works
great for me, but with a 'minor' problem.
When I open Freemind directly (via freemind.exe) the
calendar plugin appears in the menu and I can use it.
But when I double-click on a .mm file, freemind opens
ok, but with no calendar plugin activated in the menu.
I have checked that the same thing happens with the
SVG plug-in (I don't use it, but just testing it).
So I suppose the bug is in the plugin modulo, not in
any specific plugin.
As the workaround is easy I can live with this bug.
Thank for this tool. It's great.