Windows 7 comes with a variety of IMEs for entering Chinese in the manner used in Taiwan known as "bopomofo" or "zhuyin".
Like other IMEs their main job is to convert from a small set of characters to the large set of Chinese characters.
But occasionally there is a need to create text strings in bopomofo itself. To avoid the conversion step into characters.
I've played with several of the IMEs and did some Googling on the subject but have not found a way to do this. The zhuyin is always converted to hanzi!