The FileSearch object does not exist on Mac Office. You are deviously advised to use the FileFind object. Deviously, because according to the link below, MS has disabled FileFind in Office 2004, and it was very buggy in Office X (I myself can't get it to work right in Excel X).

Read down the thread for some possible workarounds....

http://www.mcse.ms/archive262-2005-5-1607068.html