Karl-Henry posted a sample to create and update calendar reminders from Notes document and I have been using similar solution but my solution make also an Ical file that can be made available via web ( link) or have it emailed as attachment .
Karl , I will take your code and add some code to it . Send me an email to palmi at lord dot is and i vill send you the code (db) for testing. then we can add this to OpenNTF. Game ?