Holiline Reminder is a simple calendar tool which can help to ensure you don't forget birthdays or other important events.
Setting up one of these events is fairly straightforward. When defining a birthday, for instance, you'll need to enter the name of the lucky person, the date, their age and gender, as well as choosing how early you'd like to be reminded (1 day before, a week, whatever you'd prefer).
Reminders will then appear at the appropriate time in a bar which will by default pop up over the taskbar (although you can also have it relocated to the top or bottom of the desktop, if you prefer).
And once you've set up all your birthdays, anniversaries and other annual events, it's easy to export them as a file which you can then share with friends and family.
What you can't do here, unfortunately, is set a reminder for a particular time of day: have the program remind you of a meeting at 11:30am, for instance. Holiline Reminder works with days only. (You could set up a reminder for the meeting day and display a message which said there was a meeting at 11:30, but that's about as close as you'll get.)
And while the authors seem to think it's a very good idea to display reminders in a bar which takes the entire width of your display, we're less convinced. The more conventional alert from the system tray would save space and be less hassle.
The program isn't exactly lightweight, either, grabbing almost 20MB of RAM on our test PC, and for some reason setting its core process to run at a High priority.
Still, it is also free, easy to use and with no adware concerns, and if you'd like a simple birthday and anniversary reminder then it's going to be a reasonable choice.