Rainlendar is a small and compact desktop calendar that comes with some powerful features under the hood. It integrates nicely with your desktop wallpaper (several skins to choose from) and allows interactive access to selected dates, just click on a date to add an appointment or reminder. It also comes with a ToDo list that can optionally be displayed or maintained hidden. The calendar automatically highlights dates that have appointments and you can switch between months via keyboard shortcuts. In addition, Rainlendar can display your existing Outlook appointments (read-only), offers message alarms, and can also display multiple months, or the entire year. There is also an optional server available that allows you to synchronize Rainlendar installations across a network.