If you are a fan of customizable desktop widgets, you are likely familiar with Rainlendar. It is one of the most enduring and lightweight calendar applications available for Windows, Linux, and macOS. However, if you have recently downloaded the "Pro" version or received a license file, you might be scratching your head over the term "r2lic."
Option 2: Right-Click MenuRight-click the calendar, select Manager, then go to File -> Install License. Browse to your license.r2lic file and select it. rainlendar license r2lic
file is the digital key that transforms the standard "Pro" evaluation version into a fully registered product. Without this file, Rainlendar Pro remains in evaluation mode, which adds a visible [UNREGISTERED] tag to all your events and tasks. Why upgrade to Pro? Cloud Sync: Directly sync with Google Calendar and Tasks, Office 365, Outlook.com, and CalDAV servers. Network Support: Subscribe to online calendars via HTTP, WebDAV, or FTP. No Limits: Remove all registration watermarks from your desktop view. How to Install Your License Once you purchase a license (typically a one-time fee of ), you will receive a download link for your license.r2lic file. Installing it is straightforward: Download the file: license.r2lic file to a known location on your computer. The "Drag and Drop" Method: Download the Correct Version: Ensure you have downloaded
A: You can, but it will contain encrypted gibberish. The data is not human-readable. Do not edit the file—it will break the signature and invalidate the license. Rainlendar Pro remains in evaluation mode
Verify Success: You can check if the license is active by opening the About dialog; it should no longer mention the Lite or Unregistered version.
Remember these key takeaways: