Attendees don’t have
to install anything. As long as they have the browser (Internet Explorer, Firefox
or Safari) along with flash player 9.0 (available for free download at http://www.adobe.com/products/flashplayer/)
everything will work fine for them.
Presenters have small browser plugin which
gets downloaded and installed automatically. This can also be downloaded before
the meeting from this location: http://webmeeting.dimdim.com/dimdim/html/envcheck/standaloneenvcheck.action?action=host