Specifying a Rendering Format in a URL

http://servername/server?/Sales/Summary&rs:Format=HTML4.0&rs:Command=Render
http://servername/server?/Sales/Summary&rs:Command=Render&rs:Format=HTML4.0&rc:Parameters=false&Year=2002

PrefixAction
rcSupplies a rendering extension with specific device information settings. 
rsTargets the report server with specific parameters.
rvPasses report parameters in a URL to a report that is stored in a SharePoint document library, for the Report Viewer Web Part. 
dspSpecifies a password with which to access a data source. 

Format types:
HTML3.2, HTML4.0, MHTML, IMAGE, EXCEL, WORD, CSV, PDF, XML, and NULL

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