English to Chinese Dictionary

Anyone know of an English Chinese Dictionary software for Windows? I've bought a netbook with Windows 7 in preparing for my China trip and I'm searching for a English Chinese Dictionary with pinyin as well as Chinese characters to load into the netbook.

Strange that there are various such dictionaries for hand held devices such as the Iphone and Google Andriod, but seemingly non for the ordinary Windows computer. I've searched Amazon, Google and can't seem to find such an English to Chinese dictionary for the Windows operating system.