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The trial version of Pop-up Excel Calendar is fully functional but will expire after a certain number of days. If you like it and want to keep it, please buy a registration code/license key to unlock it.

To purchase your license, simply go to and choose an online store.

After getting your registration code/license key, enter it to unlock the software:

  • Start Microsoft Excel.
  • In Excel 2003, click the About Pop-up Excel Calendar button on the Pop-up Excel Calendar toolbar to display the About window. If the Pop-up Excel Calendar toolbar is not shown, click Excel menu View -> Toolbars -> Pop-up Excel Calendar to display it.

    In Excel 2007, Excel 2010 and Excel 2013, click the About / Registration button to open the About window.

    Pop-up Excel Calendar - Enter your registration code/license key.

  • Enter your registration name and code exactly. To avoid mistyping, please copy and paste your registration name and code in to the proper text box.
  • Click the Activate This License Key! button.
  • Restart Excel. If your registration name and code are entered correctly, the About window displays your name.

    Pop-up Excel Calendar - Registered version.

Please feel free to contact us by clicking the Support/Email button on the About window, for any problems, questions and concerns you may have.