打拼音太费力了，试试这个吧。
Control Panel -> Date, Time, Language, and Regional Options -> Regional and Language Options -> "Languages" Tab -> in "Supplemental language support" check "Install files for East Asian languages" -> Click "OK"。如果你的XP不是预装在硬盘的隐藏分区里的话你也许需要提供XP的安装光盘。