http://bugs.winehq.org/show_bug.cgi?id=30148
--- Comment #14 from julusp@gmail.com 2012-03-20 11:37:24 CDT --- I found a brief documentation how HeroEngine use the data storage, Unfortunetly, I dont know which method is swtor using, but maybe still worth of looking.
http://hewiki.heroengine.com/wiki/Data_storage_options