Gerhard Zehetbauer

Gerhard Zehetbauer is an independent developer whose focus is squarely on solving one long-standing business pain point: keeping Microsoft Outlook calendars, tasks and contacts in continuous harmony with any server that speaks the open CalDAV or CardDAV standards. The single-title portfolio, CalDavSynchronizer, is an Outlook add-in that quietly runs inside the familiar mail client and pushes changes in real time to a wide spectrum of groupware clouds—Nextcloud, ownCloud, Google Workspace, Posteo, mailbox.org, SOGo, Zimbra, iCloud and generic CalDAV hosts—while pulling remote updates back down so every device reflects the same free/busy grid. Typical deployments range from a freelancer who wants laptop Outlook to mirror a self-hosted Nextcloud calendar, to an SME migrating from Exchange to an open-source collaboration stack yet wishing to retain the Outlook front-end, to system administrators who need a zero-training option for executives on macOS or Windows. Custom field mapping, category filters, time-range windows and one-way or two-way sync profiles let departments cherry-pick what is shared, while SSL/TLS and modern authentication keep the data path secure. Because the add-in stores nothing in the cloud itself, firms in regulated industries can stay compliant while still giving staff the Outlook experience they expect. CalDavSynchronizer is available for free on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always install the newest release, and can be queued alongside other applications for unattended batch setup.