One of the last plug-in needed for Unicode NSIS, is MoreInfo !
I've tried to contact the developer, but he doesn't seem to be actively developing this plug-in any more since 2006.
As it is developed with Borland Delphi v7.1.1, I'm not able to do anything with this.
Can anybody help to modify this plug-in to be used with Unicode NSIS ???
MoreInfo forum tread
MoreInfo plug-in on nsis.sourceforge.net
Unicode NSIS development on PA.c
Ps.: I couldn't find anything about the license, but I expect it to be the regular NSIS license
"All NSIS source code, plug-ins, documentation, examples, header files and graphics, with the exception of the compression modules and where otherwise noted, are licensed under the zlib/libpng license."
Sometimes, the impossible can become possible, if you're awesome!