http://bugs.winehq.org/show_bug.cgi?id=20054
--- Comment #2 from Vincent Povirk madewokherd@gmail.com 2009-09-15 04:04:59 --- It's most important that we move away from "MS Sans Serif", which is a bitmap font that cannot be scaled/rotated, and which gdiplus shouldn't be able to use anyway.
I don't know of any applications that rely on the font being "Microsoft Sans Serif" specifically, but given that we have a test for it I feel reluctant to change it from one wrong thing to a different (but better) wrong thing.
It seems most win9x and NT4 systems do not have gdiplus: http://test.winehq.org/data/tests/gdiplus:font.html
A few win98 systems do, and these apparently return the correct font.