There is no free download, and the package for Office 2007 is not called
"Proofing Tools".
Office 2007 uses "single language packs", which you can buy from the Microsoft
web site. See http://office.microsoft.com/en-us/suites/HA102113691033.aspx for
frequently asked questions (this page is in English, but you may find it in
other languages depending on what your browser is set to).
