Edit footer for all outlook email attachments dynamically using c#

[varunmaggo]

I have outlook 2007 and i am building a plugin, that will edit the footer for all the email attachments,(for example - abc confidential). How can i write an outlook addin, that will on the fly, will check for excelsheets and word documents and edit their footer with "abc confidential"

[varunmaggo]

i am using this code to rename attachments already. codeproject.com/Tips/508330/Rename-Attachments-in-Outlook