http://bugs.winehq.org/show_bug.cgi?id=58592
--- Comment #1 from Rafał Mużyło galtgendo@o2.pl --- As you may have noticed, plenty has changed since 1.6.2.
I'm not sure if it helps, but try using HKEY_CURRENT_USER\Software\Wine\Fonts\Replacements key instead (and keep 32bit vs 64bit in mind - sometimes you need to explicitly put in in the Wow6432Node subtree).