Developer 4Team specializes in add-ins, "software solutions integrated into Microsoft Office and Outlook," which are the business world's essential tools. Their ShareCalendar lets users share Microsoft Outlook Calendar folders without a server, both online and offline. You can share information with it from within Outlook and other Office applications, such as customized Outlook calendars with your own forms and even imported items. You can specify different folders for different groups of people, and even "subscribe" data for clients and coworkers. It also synchronizes shared Outlook items with handheld devices or between a PC and laptop.
Like the 4Team Web site, ShareCalendar's interface densely packs a lot of useful information in the available space, but it's well laid out and easy to grasp, and there's extensive assistance from the Help file as well as the product site. ShareCalendar must be installed on each user's computer. The program integrates seamlessly with Microsoft's familiar applications. When you update your shared folder, ShareCalendar automatically synchronizes and updates each subscribed users' calendars, too. Despite considerable choices for sharing this folder with that user, it's surprisingly easy to configure, thanks in part to a welcome Wizard process that walks you through each step.
ShareCalendar is free to try for 14 days and costs $24.95. It's certified for Windows 98 to 7 and all versions of Microsoft Office from 2000 on, including the 2010 beta release, which means early adopters are covered and those planning to upgrade already know their systems will be compatible.