Windows7 Pro 64bit Japanese Edition / 8GB RAM
Please check the 64bit version whether if it does run on Windows7 Pro 64 Japanese Editon or not.
I always get the latest SMPLayer 64bit editon through the following websit
http://sourceforge.jp/projects/smplayer/
SMPlayer 14.9.0-x64 DOES RUN propery.
But any version later than 14.9.0 DOESN'T RUN on Windows7 Pro 64 Japanese edition.
You double-click a SMPlayer shortcut icon, so a new instance of SMPlayer starts and appears in the process list of task manager. But no window appears.
You double-click the icon three times, so 3 instances appear in the process list. But no window appears.
You reinstall old 14.9.0-x64, so SMPLayer DOES run properly.