The program can integrate with Outlook and show its appointments and tasks on the desktop. If you synchronize your PDA device (Pocket PC, Palm, smartphone) with Outlook then through this connection you also get a synchronization with PDA as a side effect.

There are options for changing calendar icons, fonts and colors, marking weekdays of choice and marking dates with notes and/or alarms. You can have a text only version of the calendar and choose between displaying one, two or three months on the desktop.

Recurrence patterns are available for both notes and alarms. An alarm can be stand alone or attached to a note. If interactive desktop option is enabled, the program accepts direct clicks on dates, notes and tasks displayed on the desktop.

You can set each note to normal, private or invisible desktop view. Private notes are displayed as generic text reminder and invisible notes are not displayed at all. Printing calendar data is easy and includes an option to choose date range for printing notes.
Special desktop pictures option allows you to add some of your pictures to existing desktop background. Comma separated values .CSV format is supported for data export and import. Tablet PC users should not worry as the program detects desktop orientation changes automatically. Finally, Active Desktop Calendar comes with world clock screen saver that shows your computer"s system time, plus five major time zones around the world.

Features:
- Blends data with desktop wallpaper
- Calendar, notes, tasks, alarms
- Many recurrence patterns for notes/alarms
- Interactive desktop interface
- Fully customizable (icons, fonts, colors)
- Data export/import/print (CSV supported)
- Each user profile has its own data set
- Detects Tablet PC desktop orientation
- Dual/multi monitor systems supported
- Group calendar data in layers
- Share data layers on a local area network
- Direct connection with Outlook?

What is new in Active Desktop Calendar 6.1:
- Integration with Google calendar.
This new feature allows the program to read appointments directly from your private and other public Google calendars and show them on the desktop together with information from other data layers you have. Google calendar data are refreshed on 60 minutes cycles. To connect to some Google calendar go to Layers dialog and under Google layer section click Add new layer, enter some name and full iCal address for that calendar. Please note that in order to connect to your Google Calendar data, Active Desktop Calendar have to access your Internet connection.