I need a product key for Microsoft word 2007. my trial version has expired and i lost the product key, help.

Here is a link to buy a new product key from Microsoft: http://office.microsoft.com/en-us/word/FX102464491033.aspx

Most people would be reluctant to hand out their legitmate product keys over the Internet. Microsoft and other software companies use product keys and other secuity measures to prevent piracy of their products.