http://bugs.winehq.org/show_bug.cgi?id=22149
--- Comment #1 from Nikolay Sivov bunglehead@gmail.com 2010-03-24 10:54:31 --- (In reply to comment #0)
It uses riched20, riched32 and oleaut32 as native, builtin with font smoothing set to RGB if that helps connect it to other bugs at all.
To many overrides actually, generally you should start with builtins only - does it leak without any overrides?
If it does you could run under valgrind probably.