Rainlendar is a customizable calendar that displays the current month. It is a very lightweight application that doesn't use much system resources or take much space on your desktop.

* Small and lightweight
* Different type events can have different appearence
* Supports Windows transparency
* Synchronizes events between several clients
* Localized for multiple languages
* Shows an alarm when an event is due
* Supports iCal files.
* Shows Outlook's appointments
* Includes a todo-list
* Works also as Litestep plugin
* Displays the current date in tray icon
* Can stick to the desktop (i.e. doesn't hide with Show Desktop)
* Hotkeys for quick access
* Easy skinning with an UI