The ActiveReports Professional Edition license entitles you to use the WebViewer, which allows you to quickly display reports in any of four viewer types: HtmlViewer, RawHtml, AcrobatReader, or the new FlashViewer.
Before using the WebViewer, you must first configure the HTTPHandlers.
Getting Started with the Web Viewer (Pro Edition)
Flash Viewer Hot Keys and Shortcuts
Silverlight Viewer (Pro Edition)
Silverlight Viewer Hot Keys and Shortcuts (Pro Edition)
The Standard Edition license does not have a Web viewer, but you can export reports for use on the Web or use Web Services to distribute documents or data sources. For more information, see Web Walkthroughs (Standard Edition).