I don't know much about IIS configuration at all.
I'm running a blog based on Blogengine.net (http://dotnetblogengine.net/) I upgraded it to 2.6 (from 2.0) and was moved by my service provider to a new server that supports .NET 4.
The problem is that all http-handlers are not working. I have no direct control over the web server except for the web.config. The support at my service provider has generated a log for me, which gives a bit more details than a 404 when requesting something from a handler. It says HANDLER_PRECONTITION_NOT_MATCH which I suspect could be the cause of this problem.
As I said, I don't know much at all about configuration like this, the site work locally when running on IIS7.5 Express, but there seems to be the same problem when using the standard development server. My site has been non working for days now, and I'm running out of options, what to try to do!
A snippet from my web.config (exactly like the one from blogengine.net download):
<handlers accessPolicy="Read, Write, Script, Execute">
<add name="FileHandler" verb="*" path="file.axd" type="BlogEngine.Core.Web.HttpHandlers.FileHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="ImageHandler" verb="*" path="image.axd" type="BlogEngine.Core.Web.HttpHandlers.ImageHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Syndication" verb="*" path="syndication.axd" type="BlogEngine.Core.Web.HttpHandlers.SyndicationHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Sitemap" verb="*" path="sitemap.axd" type="BlogEngine.Core.Web.HttpHandlers.SiteMap, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Trackback" verb="*" path="trackback.axd" type="BlogEngine.Core.Web.HttpHandlers.TrackbackHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Pingback" verb="*" path="pingback.axd" type="BlogEngine.Core.Web.HttpHandlers.PingbackHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="OpenSearch" verb="*" path="opensearch.axd" type="BlogEngine.Core.Web.HttpHandlers.OpenSearchHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="MetaWeblog" verb="*" path="metaweblog.axd" type="BlogEngine.Core.API.MetaWeblog.MetaWeblogHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="RSD" verb="*" path="rsd.axd" type="BlogEngine.Core.Web.HttpHandlers.RsdHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<!--<add name="CssHandler" verb="*" path="css.axd" type="BlogEngine.Core.Web.HttpHandlers.CssHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>-->
<add name="WebResource" path="*.js.axd" verb="*" type="BlogEngine.Core.Web.HttpHandlers.JavaScriptHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Resource" verb="*" path="*.res.axd" type="BlogEngine.Core.Web.HttpHandlers.ResourceHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Rating" verb="*" path="rating.axd" type="BlogEngine.Core.Web.HttpHandlers.RatingHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Opml" verb="*" path="opml.axd" type="BlogEngine.Core.Web.HttpHandlers.OpmlHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="BlogML" verb="*" path="blogml.axd" type="BlogEngine.Core.Web.HttpHandlers.BlogMLExportHandler, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="SIOC" verb="*" path="sioc.axd" type="BlogEngine.Core.Web.HttpHandlers.Sioc, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Apml" verb="*" path="apml.axd" type="BlogEngine.Core.Web.HttpHandlers.Apml, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Foaf" verb="*" path="foaf*.axd" type="BlogEngine.Core.Web.HttpHandlers.Foaf, BlogEngine.Core" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode"/>
<add name="Html" path="*.htm" verb="*" type="System.Web.StaticFileHandler" resourceType="Unspecified" preCondition="integratedMode"/>
<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</handlers>
I have finally solved the problem! the "Pool mode" in my service providers settings was set to classic. I changed it to "integration" and all problems went away :-)
Related
I am creating a web app in asp.net, I have a Radeditor, when I clicked on Ajax spellcheck, I am getting the error of
Web.Config Registration Missing!
The SpellChecking Functionality Requires a HttpHandler registration in
web.config, please use the control smart tag to add the handler
automatically, or see the help for more information.
Telerik.Web.UI.SpellCheckHandler.axd
My web.config look like the below
HttpHandler
<httpHandlers>
<add path="WebResource.axd" verb="GET" type="System.Web.Handlers.AssemblyResourceLoader" validate="true" />
<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false" />
<add path="Telerik.Web.UI.DialogHandler.aspx" verb="*" type="Telerik.Web.UI.DialogHandler" validate="false" />
<add path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" validate="false" />
</httpHandlers>
Handler
<handlers>
<remove name="ChartImageHandler" />
<remove name="Telerik_RadUploadProgressHandler_ashx" />
<remove name="Telerik_Web_UI_WebResource_axd" />
<remove name="Telerik_Web_UI_DialogHandler_aspx" />
<remove name="Telerik_Web_UI_SpellCheckHandler_axd" />
<add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD,POST" path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="Telerik_RadUploadProgressHandler_ashx" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" preCondition="integratedMode" />
<add name="Telerik_Web_UI_DialogHandler_aspx" path="Telerik.Web.UI.DialogHandler.axd" type="Telerik.Web.UI.DialogHandler" verb="*" preCondition="integratedMode" />
<add name="Telerik_Web_UI_SpellCheckHandler_axd" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" preCondition="integratedMode" />
<add name="Telerik_Web_UI_WebResource_axd" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" preCondition="integratedMode" />
</handlers>
Location
<location path="Telerik.Web.UI.WebResource.axd">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
Error on page
What else should I add in web.config, as I try to work with This solution but still facing the same problem
After Implementing Rumen Jekov Solution, I am still getting the error
Regarding the Spell Check Handler Server Error, AjaxUrl property is used to set the path to the handler and is used in scenarios where you may have a UrlRewriter module which overwrites the handlers url even if they are set in the web.config. A correct value of this property is like follows: RadEditor1.SpellCheckSettings.AjaxUrl = "Telerik.Web.UI.SpellCheckHandler.aspx";
Once you set the new AjaxUrl value, go to the web.config file and update the Telerik.Web.UI.SpellCheckHandler.axd instances to Telerik.Web.UI.SpellCheckHandler.aspx
Check this article for more information about problems with handlers: https://www.telerik.com/support/kb/aspnet-ajax/editor/details/error-web-config-registration-missing!-the-telerik-dialogs-require-a-httphandler-registration-in-the-web-config-file-
Introduction
I am working on an existing website. Here,
I am using google adsense for my website as most people do, the problem i faced that the ads were not working for the website.
Lately, i have found that if i append '/' at the end of each url, then ads starts displaying.
Problem
Now, i been looking for help to append the '/' char to every url of my webpage but (search results)either not working or relative.
For example : if i have webpage http://example.com, and i need it to http://example.com/
Handlers in web.config(i don't this this will be needed, anyways)
<handlers>
<remove name="WebServiceHandlerFactory-Integrated" />
<remove name="ScriptHandlerFactory" />
<remove name="ScriptHandlerFactoryAppServices" />
<remove name="ScriptResource" />
<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=4.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=4.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=4.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<remove name="ChartImage_axd"/>
<add name="ChartImage_axd" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler" verb="*" preCondition="integratedMode"/>
<remove name="Telerik_Web_UI_SpellCheckHandler_axd"/>
<add name="Telerik_Web_UI_SpellCheckHandler_axd" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" verb="*" preCondition="integratedMode"/>
<remove name="Telerik_Web_UI_DialogHandler_aspx"/>
<add name="Telerik_Web_UI_DialogHandler_aspx" path="Telerik.Web.UI.DialogHandler.axd" type="Telerik.Web.UI.DialogHandler" verb="*" preCondition="integratedMode"/>
<remove name="Telerik_RadUploadProgressHandler_ashx"/>
<add name="Telerik_RadUploadProgressHandler_ashx" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" preCondition="integratedMode"/>
<remove name="Telerik_Web_UI_WebResource_axd"/>
<add name="Telerik_Web_UI_WebResource_axd" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" preCondition="integratedMode"/>
</handlers>
I dont know how to write code for web.config file or route file, if someone knew the way, please help.
Thanks for your time.
I have a DotNetNuke 7 website and I have enabled custom errors like so:
<customErrors mode="On" defaultRedirect="Error.aspx">
<error statusCode="404" redirect="FileNotFound.aspx" />
</customErrors>
I also want to add such errors for extension less URLs but when I try to add a wildcard mapping it breaks the site with 404 on the http://mysite.com etc
<add name="WILDCARDMAPPING" path="*" verb="*" type="" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="None" allowPathInfo="false" preCondition="integratedMode,bitness64" />
How do I setup the handlers..
<handlers accessPolicy="Read, Execute, Script">
<remove name="WebServiceHandlerFactory-Integrated" />
<add name="LogoffHandler*" path="Logoff.aspx" verb="*" type="DotNetNuke.Services.Authentication.LogOffHandler, DotNetNuke" preCondition="integratedMode" />
<add name="RSSHandler" path="RSS.aspx" verb="*" type="DotNetNuke.Services.Syndication.RssHandler, DotNetNuke" preCondition="integratedMode" />
<add name="LinkClickHandler" path="LinkClick.aspx" verb="*" type="DotNetNuke.Services.FileSystem.FileServerHandler, DotNetNuke" preCondition="integratedMode" />
<add name="CaptchaHandler" path="*.captcha.aspx" verb="*" type="DotNetNuke.UI.WebControls.CaptchaHandler, DotNetNuke" preCondition="integratedMode" />
<add name="UserProfilePageHandler" path="User.aspx" verb="*" type="DotNetNuke.Services.UserProfile.UserProfilePageHandler, DotNetNuke" preCondition="integratedMode" />
<add name="RadProgressHandler" verb="*" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.Upload.RadUploadProgressHandler, Telerik.Web.UI" preCondition="integratedMode" />
<add name="UserProfilePicHandler" path="ProfilePic.ashx" verb="*" type="DotNetNuke.Services.UserProfile.UserProfilePicHandler, DotNetNuke" preCondition="integratedMode" />
<remove name="ExtensionlessUrl-Integrated-4.0" />
<add name="ExtensionlessUrl-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
<add name="SitemapHandler" path="Sitemap.aspx" verb="*" type="DotNetNuke.Services.Sitemap.SitemapHandler, DotNetNuke" preCondition="integratedMode" />
<add name="ClientDependencyHandler" verb="*" path="DependencyHandler.axd" type="ClientDependency.Core.CompositeFiles.CompositeDependencyHandler, ClientDependency.Core" preCondition="integratedMode" />
<add name="Telerik.Web.UI.WebResource" verb="*" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" preCondition="integratedMode" />
<add name="Telerik.Web.UI.ChartHttpHandler" verb="*" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4" />
<add name="HtmTemplateFileHandler" verb="*" path="*.htmtemplate" type="DotNetNuke.Providers.RadEditorProvider.HtmTemplateFileHandler, DotNetNuke.RadEditorProvider" preCondition="integratedMode" />
<add name="WILDCARDMAPPING" path="*" verb="*" type="" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="None" allowPathInfo="false" preCondition="integratedMode,bitness64" />
</handlers>
I have tried movie the WILDCARDMAPPING handler I added to the top, middle but it doesnt work.
DNN already provides support for extension less urls when there is a page that has been added to the CMS like /Home but shows the normal 404 error message for /somepage.
Just add to each directory an index.html that shows what you would like to display for that case - by default opening http://SomeUrl/some/path/ always opens/tries to open http://SomeUrl/some/path/index.html
This works:
<system.webServer>
<httpErrors>
<remove statusCode="404" subStatusCode="-1" />
<error statusCode="404" path="/FileNotFound.aspx" responseMode="ExecuteURL" />
</httpErrors>
</system.webServer>
DNN 7.1 includes the new "Advanced URL Provider" (based on iFinity's URL Master extension), which includes built-in support for 404 pages & extension-less URLs. There is a page called "404 Error Page" in a new DNN 7.1 site (you have to create it manually in an upgraded site, see the accepted answer at http://www.dnnsoftware.com/answers/cid/350985), which will be returned for pages that aren't found (whether there's an extension or not).
Related:
DNN 404 Handling article on DNN's wiki
Blog post on 404 handling
I've written a command line tool that deploys HTTP Handlers to an applications Web.Config file using a combination of System.Configuration, System.Web.Configuration and Microsoft.Web.Administration since it needs to register the handlers for both Classic and Integrated Modes as I don't know what mode end users will be using for their IIS deployments.
My issue is that is that when the tool is run the <handlers> section under <system.webServer> gets filled with the following extra unecessary entries as well as the entries I wanted to add:
<add name="rules-Integrated" path="*.rules" verb="*" type="System.ServiceModel.Activation.HttpHandler, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="integratedMode" />
<add name="xoml-Integrated" path="*.xoml" verb="*" type="System.ServiceModel.Activation.HttpHandler, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="integratedMode" />
<add name="ISAPI-dll" path="*.dll" verb="*" modules="IsapiModule" resourceType="File" requireAccess="Execute" allowPathInfo="true" />
<add name="TraceHandler-Integrated" path="trace.axd" verb="GET,HEAD,POST,DEBUG" type="System.Web.Handlers.TraceHandler" preCondition="integratedMode" />
<add name="WebAdminHandler-Integrated" path="WebAdmin.axd" verb="GET,DEBUG" type="System.Web.Handlers.WebAdminHandler" preCondition="integratedMode" />
<add name="AssemblyResourceLoader-Integrated" path="WebResource.axd" verb="GET,DEBUG" type="System.Web.Handlers.AssemblyResourceLoader" preCondition="integratedMode" />
<add name="PageHandlerFactory-Integrated" path="*.aspx" verb="GET,HEAD,POST,DEBUG" type="System.Web.UI.PageHandlerFactory" preCondition="integratedMode" />
<add name="SimpleHandlerFactory-Integrated" path="*.ashx" verb="GET,HEAD,POST,DEBUG" type="System.Web.UI.SimpleHandlerFactory" preCondition="integratedMode" />
<add name="WebServiceHandlerFactory-Integrated" path="*.asmx" verb="GET,HEAD,POST,DEBUG" type="System.Web.Services.Protocols.WebServiceHandlerFactory, System.Web.Services, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" preCondition="integratedMode" />
<add name="HttpRemotingHandlerFactory-rem-Integrated" path="*.rem" verb="GET,HEAD,POST,DEBUG" type="System.Runtime.Remoting.Channels.Http.HttpRemotingHandlerFactory, System.Runtime.Remoting, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="integratedMode" />
<add name="HttpRemotingHandlerFactory-soap-Integrated" path="*.soap" verb="GET,HEAD,POST,DEBUG" type="System.Runtime.Remoting.Channels.Http.HttpRemotingHandlerFactory, System.Runtime.Remoting, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="integratedMode" />
<add name="CGI-exe" path="*.exe" verb="*" modules="CgiModule" resourceType="File" requireAccess="Execute" allowPathInfo="true" />
<add name="rules-ISAPI-2.0" path="*.rules" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness32" />
<add name="rules-64-ISAPI-2.0" path="*.rules" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness64" />
<add name="xoml-ISAPI-2.0" path="*.xoml" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness32" />
<add name="xoml-64-ISAPI-2.0" path="*.xoml" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness64" />
<add name="ASPClassic" path="*.asp" verb="GET,HEAD,POST" modules="IsapiModule" scriptProcessor="%windir%\system32\inetsrv\asp.dll" resourceType="File" />
<add name="SecurityCertificate" path="*.cer" verb="GET,HEAD,POST" modules="IsapiModule" scriptProcessor="%windir%\system32\inetsrv\asp.dll" resourceType="File" />
<add name="AXD-ISAPI-2.0-64" path="*.axd" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness64" responseBufferLimit="0" />
<add name="PageHandlerFactory-ISAPI-2.0-64" path="*.aspx" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness64" responseBufferLimit="0" />
<add name="SimpleHandlerFactory-ISAPI-2.0-64" path="*.ashx" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness64" responseBufferLimit="0" />
<add name="WebServiceHandlerFactory-ISAPI-2.0-64" path="*.asmx" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness64" responseBufferLimit="0" />
<add name="HttpRemotingHandlerFactory-rem-ISAPI-2.0-64" path="*.rem" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness64" responseBufferLimit="0" />
<add name="HttpRemotingHandlerFactory-soap-ISAPI-2.0-64" path="*.soap" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness64" responseBufferLimit="0" />
<add name="AXD-ISAPI-2.0" path="*.axd" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness32" responseBufferLimit="0" />
<add name="PageHandlerFactory-ISAPI-2.0" path="*.aspx" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness32" responseBufferLimit="0" />
<add name="SimpleHandlerFactory-ISAPI-2.0" path="*.ashx" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness32" responseBufferLimit="0" />
<add name="WebServiceHandlerFactory-ISAPI-2.0" path="*.asmx" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness32" responseBufferLimit="0" />
<add name="HttpRemotingHandlerFactory-rem-ISAPI-2.0" path="*.rem" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness32" responseBufferLimit="0" />
<add name="HttpRemotingHandlerFactory-soap-ISAPI-2.0" path="*.soap" verb="GET,HEAD,POST,DEBUG" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness32" responseBufferLimit="0" />
<add name="SSINC-stm" path="*.stm" verb="GET,POST" modules="ServerSideIncludeModule" resourceType="File" />
<add name="SSINC-shtm" path="*.shtm" verb="GET,POST" modules="ServerSideIncludeModule" resourceType="File" />
<add name="SSINC-shtml" path="*.shtml" verb="GET,POST" modules="ServerSideIncludeModule" resourceType="File" />
<add name="AboMapperCustom-159838" path="*.pl" verb="GET,HEAD,POST" modules="CgiModule" scriptProcessor="C:\Perl64\bin\perl.exe "%s" %s" resourceType="File" requireAccess="Script" responseBufferLimit="0" />
<add name="TRACEVerbHandler" path="*" verb="TRACE" modules="ProtocolSupportModule" requireAccess="None" />
<add name="OPTIONSVerbHandler" path="*" verb="OPTIONS" modules="ProtocolSupportModule" requireAccess="None" />
<add name="StaticFile" path="*" verb="*" modules="StaticFileModule,DefaultDocumentModule,DirectoryListingModule" resourceType="Either" requireAccess="Read" />
Does anyone know why this might be happening and how I can stop it?
When I save my configuration opened with System.Web.WebConfigurationManager I use ConfigurationSaveMode.Minimal so any inherited configuration (which is what this appears to be) should not get written.
Strangely enough if this is then deleted on subsequent runs of the program this information does not reappear
Any ideas/pointers/solutions?
You are probably using Microsoft.Web.Administration, in the code that adds the handler try specifying the index (AddAt) 0 (or -1? I do not remember exactly), but that should prevent that from happening. The reason is because that collection uses semantics of appending the new ones at the top and since you are just calling Add then it forces it to add a copy of the parent to "obey" your code.
What is the difference of adding and removing handlers in as oppose to ?
In a new web project I made with VS2008, the handlers are defined as this:
<system.web>
...
<httpHandlers>
<remove verb="*" path="*.asmx"/>
<add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false"/>
<add verb="*" path="/hello/helloworld.xml" type="HandlerTest.HelloWorldHandler, HandlerTest"/>
</httpHandlers>
<httpModules>
<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</httpModules>
</system.web>
But in a pre-existing project, (ie: Community server), the http handlers are added/removed in as follows:
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<security>
<requestFiltering allowDoubleEscaping="true"/>
</security>
<modules runAllManagedModulesForAllRequests="true">
<remove name="CommunityServer"/>
<remove name="ScriptModule"/>
<remove name="UrlRoutingModule"/>
<add name="CommunityServer" type="CommunityServer.CSHttpModule, CommunityServer.Components"/>
<add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</modules>
<handlers accessPolicy="Read, Write, Script, Execute">
<remove name="WebServiceHandlerFactory-Integrated"/>
<remove name="ScriptHandlerFactory"/>
<remove name="ScriptHandlerFactoryAppServices"/>
<remove name="ScriptResource"/>
<add verb="GET" name="redirect" path="Utility/redirect.aspx" type="CommunityServer.Components.Redirect, CommunityServer.Components"/>
<add verb="GET" name="aggbug" path="aggbug.aspx" type="CommunityServer.Components.HttpHandler.AggBugHandler, CommunityServer.Components"/>
<add verb="GET" name="avatar" path="avatar.aspx" type="CommunityServer.Components.HttpHandler.AvatarHttpHandler, CommunityServer.Components"/>
<add verb="GET" name="vcard" path="vcard.aspx" type="CommunityServer.Components.HttpHandler.VCardHttpHandler, CommunityServer.Components"/>
<add verb="GET" name="tinyurl" path="r.ashx" type="CommunityServer.Components.HttpHandler.TinyUrlHttpHandler, CommunityServer.Components"/>
<add verb="GET" name="weblogsubscription-confirmation" path="weblogsubscription-confirmation.ashx" type="CommunityServer.Blogs.Components.WeblogSubscriptionConfirmation, CommunityServer.Blogs"/>
<add verb="GET" name="threadsubscription-confirmation" path="threadsubscription-confirmation.ashx" type="CommunityServer.Blogs.Components.ThreadSubscriptionConfirmation, CommunityServer.Blogs"/>
<add verb="GET" name="cfs-file" path="cfs-file.ashx" type="CommunityServer.Components.FileHttpHandler, CommunityServer.Components"/>
<add verb="GET" name="cfs-filesystemfile" path="cfs-filesystemfile.ashx" type="CommunityServer.Components.FileSystemFileStorageHttpHandler, CommunityServer.Components"/>
<add verb="GET" name="resized-image" path="resized-image.ashx" type="CommunityServer.Components.ImageFileResizerHttpHandler, CommunityServer.Components"/>
<add verb="GET,POST" name="multipleupload" path="multipleupload.ashx" type="Telligent.Glow.MultipleUploadFileHandler, Telligent.Glow"/>
<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="ScriptResource" verb="GET,HEAD" path="ScriptResource.axd" preCondition="integratedMode" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="UrlRoutingHandler" preCondition="integratedMode" verb="*" path="UrlRouting.axd" type="System.Web.HttpForbiddenHandler, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
<add name="TinyMCE" verb="GET,HEAD,POST" path="TinyMCE.ashx" type="Moxiecode.TinyMCE.Web.HttpHandler,Moxiecode.TinyMCE"/>
<add name="Schedule" verb="*" path="schedule.ashx" type="CommunityServer.Scheduler.ScheduleHandler, CommunityServer.Scheduler" />
</handlers>
</system.webServer>
Why are there more than one way of registering an http handler?
The <system.web> section applies to IIS6 and below whereas <system.webServer> applies to IIS7 and above. The layout of web.config was re-engineered for IIS7 to make it more powerful / friendly, but at the cost of backwards compatibility.
The second example that you posted where they are in the '' node is the way to configure for IIS 7 allowing you to configure the server directly. The other method is "legacy" and works on all supported IIS versions.