VBS and Pop3

I run a small pop3 local email server (Burrotech – Office Connect), and need to let users know when they have new mail either on the server, or on their local machines. I am running normal Outlook Express, and not Outlook, so I only have the option to let them know via a sound, which I cant use, cause the users don’t have speakers.
Is it possible to use VBS to check if there are new mail and let users know via msgbox, and how do you do it?