Cannot call to handler.ashx in Vista IIS7

Question

User-1179262497 posted

I just moved to Vista with IIS7 from XP (IIS 6). Now, everything works fine except the handler is not working and it will throw a Visual Studio Just In Time debugger out.

 The handler is just a simple image handler, which takes in an ID and then find in database and then return as content type of image.

Is there something I am missing?

Answer 1

User1054194070 posted
Try adding your ashx handler to the list of managed handlers in IIS Manager. See the example here.

Answer 2

User-1179262497 posted

I dont know why it's not working.

This is my handler:

namespace CoreApp

{

           public class WebPreviewHandler : IHttpHandler

                {

 

and then in web.config i have:

<handlers>

<remove name="WebServiceHandlerFactory-Integrated" />

<remove name="ScriptHandlerFactory" />

<remove name="ScriptHandlerFactoryAppServices" />

<remove name="ScriptResource" />

<add name="WebPreviewHandler" verb="*" path="*.ashx" type="CoreApp.WebPreviewHandler,CoreApp.dll" />

<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" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />

</handlers>

When I run the handler directly, it says:

Could not load file or assembly 'CoreApp.dll' or one of its dependencies. The system cannot find the file specified

Answer 3

User624841477 posted

 Hi,

try adding entry in Machine.config file as ....

<add path="*.ashx" verb="*" type="System.Web.HttpForbiddenHandler" validate="True"/>

 Regards,

Sunil

Answer 4

User1054194070 posted

I dont know why it's not working.

Try these:

<httpHandlers><o:p></o:p>

<add verb="*" path="*.ashx" validate="false" type="CoreApp.WebPreviewHandler, CoreApp" /><o:p></o:p>

</httpHandlers><o:p></o:p>

<handlers><o:p></o:p>

<add name="WebPreviewHandler" verb="*" path="*.ashx" type="CoreApp.WebPreviewHandler" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode" /><o:p></o:p>

</handlers><o:p></o:p>

It's not an ASP.NET MVC application, is it?

Answer 5

User-1179262497 posted

Don't quite get it, this is what I have:

<handlers>
      
      <REMOVE class=st name=""WebServiceHandlerFactory-Integrated">
      <REMOVE class=st name=""ScriptHandlerFactory">
      <REMOVE class=st name=""ScriptHandlerFactoryAppServices">
      <REMOVE class=st name=""ScriptResource">
      <ADD class=st name=""WebPreviewHandler" verb="*" path="*.ashx" type="CoreApp.WebPreviewHandler" resourceType="Unspecified" requireAccess="Script" preCondition="integratedMode">

       <ADD class=st 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 class=st 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 class=st name=""ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
    </HANDLERS>