Make the file author property readonly - MS-Word 2007

Question

Hi All,

I just want to know is there a way of locking a MS-Word files author, while keeping the document editable. in MS-Word 2007

currently

you crate a document save the document right click on the document and go to properties go to summary tab it shows the 'author' of the file and it can be editable.

what I want to do is, lock the author property where nobody can change its value. But I want to allow others to Edit my document content.

hope my question is clear

thanks in advance

cheers

sameera