Downloaded FX Composer and is not working.
I got message FX Composer 2 .exe stopped working popup message.
Did some google search and found out in Nvidia forum others faced the same problem although OS is not mentioned.
From the forum, it seem nvidia would NOT fix this issue for windows 8.1 although they already mentioned in download page that this is legacy tool.
Take note I installed FX composer in windows 8.0 and windows 7 and is working fine (.exe is running fine).