Send email

Question

i am developing a windows application, my database is in MS-Access. I have a form which stores the activation date and the expiry date of a product in the database. i want that when 5 days will be left for expiry of a product then application will automatically generate an email and send it to the administrator as a reminder and after that from that day it will keep on sending mail everyday till the expiry date i.e for 5 days cotinously. Please help me out