Chinese Writing Software
There are some cheap and often also fee-free additional software for windows, which enable the input of Chinese characters in different Windows-software.
The NJStar Communicator is here to recommend ( http://www.njstar.com/). The demo version of NJStar is for free, while for the full version is to pay. The speciality of the site is the possibility, BIG-5 coded pages, also pages with traditional characters using a font easily change to simplified characters. This is also the other way working.
Richwin offers the software RichWin for internet as demo version (http://richwin.sina.com.cn/products/index_e.html).
However, if you want a multifunctional tool you can have a look to these software: ChineseStar, NJSTAR, RichWin, Twinbridge or UnionWay.