XPにメイリオが正式登場！？

Japanese Fonts shipped with Windows XP use embedded bitmaps to provide legibility at small sizes on the screen. Windows Presentation Foundation (WPF) does not display these bitmaps but instead renders the outlines. These outlines are not instructed (hinted) for good legibility and the results are poor. Meiryo Collection Version 5.00 has been properly instructed for legibility at 9 point size and above in ClearType environments such as WPF.

http://barca.daa.jp/archives/2008/05/meiryo-for-xp.php
om's System:メイリオ単体配布

肝心のダウンロードはこちら。

Download Windows XP 向け ClearType 対応日本語フォント from Official Microsoft Download Center