What does the eRoom plug-in software do?
The plug-in adds features such as drag-and-drop of files/folders between My Computer/Windows Explorer windows and webCafé, as well as spell-checking and formatting features (boldface/colors/hyperlinks) in comments, notes, and announcements. There are also capabilities for synchronizing certain tasks and calendar events into your Outlook software.
Other than those features, when using Internet Explorer under Microsoft Windows, webCafé works the same way with and without the plug-in. Unfortunately the plug-in software is not available to install on a Linux or Mac OS computer (although users of Boot Camp or other Windows-enabling software for Macintosh are welcome to try the plug-in within "virtualized" Windows.)