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Getting error as : HTTP Error 404.3 - Not Found

Posted By:      Posted Date: September 04, 2010    Points: 0   Category :WCF
Hi,   I have taken a sample WEBService, created virtual directory and compiled my website and published it(successful). when i type URL in explorer giving error as : HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid.detailed information abt error:Detailed Error Information Module IIS Web Core Notification BeginRequest Handler Not yet determined Error Code 0x800700b7 Config Error Cannot add duplicate collection entry of type 'add' with unique key attribute 'name' set to 'ScriptModule' Config File \\?\C:\inetpub\wwwroot\WCFServiceDemo\web.config Config source:<modules>  139:         <add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>  140:       </modules>so i have deleted some files from web.config file and published again. When executed given error as: HTTP Error 404.3 - Not Found The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map.PC information:vista ultimate VS 2008 sp1Framework 3.5.Anyone suggest on it, where i could explore it without error.Thanks. nagarjun

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