Auto-Email Sending At Regular Intervals

I want that evrery day morning a greeting Email gets sent to all people having birthday on that day.

I dont want that user has to explicitly click on some link which executes the mail sending scripts. Is there any way to automatically send email?

One way is scheduling job in SQL. But what if I am using access?

Another way is to create a vb program that runs in background. But what if my Host Server does not allow me to register dll?

Anyways please suggest whatever option you have, dll or SQL or anything else.

We often receive emails from Job sites, or greetings. I dont think a person might be sending them manually.