NSIS Error launching installer
OpenMW uses NSIS in cmake as installer generator, but stock NSIS doesn't support Unicode resulting in error above when paths contain Unicode. There is NSIS Unicode project (http://www.scratchpaper.com/). Someone who is familiar with CMake/CPack and installers should look for it.
(RM-1344 from redmine: created on 2014-05-23 by Artem Kotsynyak, )