http://bugs.winehq.org/show_bug.cgi?id=27124
--- Comment #5 from Dan Kegel dank@kegel.com 2013-07-11 21:46:42 CDT --- I managed to download their installer by clicking on a 'download demo' link. http://dld.thehappycloud.com/hc4321depl0y/Setup_HappyCloud_1.374.exe 4ae4c36bc601eba4237ca4160fea4ad4dee51fe8 Setup_HappyCloud_1.374.exe
With 'winetricks ie7', installing their plugin seems to succeed (though without an ok dialog at the end). wine 'C:\Program Files\Internet Explorer\iexplore' http://thehappycloud.com/home did show the site and let me log in and click on a game, but then when I clicked on 'free demo', ie7 locked up; the log showed err:seh:setup_exception_record stack overflow 860 bytes in thread 002e eip f74ff977 esp 015c0fd4 stack 0x15c0000-0x15c1000-0x16c0000
I then used wine-1.4.1, and it was able to 'purchase' the demo.
After that, I logged in again with wine-1.6-rc4, and the demo now had a 'play demo' button... that didn't do anything. Saw lots of this warning: fixme:shell:DllGetClassObject failed for CLSID={871c5380-42a0-1069-a2ea-08002b30309d} (Internet)
So it's regressed since 1.4.1.