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Integration with Outlook
Preset calendar files

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Customizable PIM on your desktop wallpaper


Active Desktop Calendar


free download

order here

  Upgrading Active Desktop Calendar


To upgrade the program you just have to install new version to the same folder as before over the old one, so:

  1. Download new program installation archive ADC.EXE to your desktop or some temporary folder.
    For 64-bit version download ADC64BIT.EXE instead.
  2. Right click on the program's icon in the system tray and choose Exit.
  3. Double click on adc.exe to start the installation, then follow instructions on the screen and install the program to the same folder as before over the old version. We strongly recommend you to close down all other programs before starting the installation process.
  4. Start the program again by double-clicking the Active Desktop Calendar icon on the desktop.

    Important! If you are sharing calendar layers in a local area network and want to upgrade from version 4.x (or older) to version 5.0 (or later) please note that you will have to upgrade all computers at once because older versions of the program can not read new layer file format correctly. After you finish with installing upgrades make some change (e.g. add new note) to all shared layers and they will automatically refresh with a new format throughout the network.


  • The new version should automatically recognize your registration, but we still recommend that you keep your registration code in a safe place so you can use it again if anything goes wrong. If you have lost the order confirmation message you can read your registration code from the program. To do that right click on the program's icon in the system tray and choose About. The registration code consists of 17 symbols (two "-" included).
  • To check the version number you have right click on the program's icon in the system tray and choose About.
  • To check the current version number go to the program's homepage (build number is just right of the free download link). There you can also subscribe to the program's newsletter to be informed about all new versions on time.
Data Sharing
Data sharing in a local network
Calendar data import and export in CSV format

Connection with OutlookŪ
Integration with Outlook
Import calendar from Outlook via CSV file

Data Backup & Restore
Built-in automatic backup function
Restoring data from a backup file
Calendar database file location

Web Calendars
Integration with Google Calendars
Integration with weather forecast

Lotus Notes
Synchronizing with Lotus Notes

Preset Calendar Files
How to make .ADC files to share
Holidays & Moon phases
NFL schedules
NBA schedules
NHL schedules
Big dates in history (world, USA, sports, music, ...)
Miscellaneous, entertainment and other sports

Frequently asked questions
Evaluation period limits
Online copy of program's help files
Version history

Look & Feel
Customizing desktop appearance
Set icons calendar to your language
ADC Club: download free icon sets

Install & Uninstall
Installation process
Removal procedure
Upgrade procedure
Got new computer? Here is how to move calendar data and settings

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