I need to develop a windows application with .NET 3.5 that needs to have a calendar and user can schedule appointments.
I want (not with a windows-service) that while the application is on, all the reminders that are set up for this user + reminders that admins set them up, should trigger an event in the application so I can handle it (showing the user a message, notify icon or whatever), once its datetime becomes now. The data is saved in SQL Server and accessible from many computers, the admin should be able to externally create reminders for users.
Any approaches?