When I attempt to load a page scripted for Microsoft Agent using Netscape Navigator (or other Internet browsers), I get errors.

Microsoft Agent is implemented using ActiveX interfaces. You can use it only with a browser (such as Microsoft Internet Explorer) that supports embedding ActiveX objects through script on a page, and only on systems running Microsoft Windows 95 and Windows NT 4.0. If you are not using Microsoft Internet Explorer, check with your browser vendor for further information on ActiveX support.