Is there a way for PHP (or ASP for that matter) to interact with the Outlook Calendar and public folders

Is there a way for PHP (or ASP for that matter) to interact with the MS Outlook Calendar and Public Folders? We want to program a Web application that can: 1. Send e-mails to users/distribution groups as retrieved from our Outlook Database. 2. View Outlook Calendars on-line to schedule meetings and resources (meeting rooms). 3. Submit e-mail postings to public folders. Any information would be appreciated. Jason Hoover Entolo 2299 Territorial Road St. Paul, MN 55114 Phone: 612.847.8022 Fax: 651.642.1600 jhoover@entolo.com www.entolo.com