Win Form应用程序每天运行一个方法，即使它没有运行

I have a VB .Net Windows Form application with MS SQL server for database part of it. I need to run a method which essentially depending on some date sensitive data in the database may or may not create a notification email to be sent to one or more recipients. This application may not be used everyday. So ideally I don't want that method to be bound to let say Form Load of the main Form. How can this be achieved?I have a VB .Net Windows Form application with