iHttpModule and Virtual Directories

[SirPyros]

I am working on a web application, for which i created a custom
ihttpmodule to handle authentication. I am creating another application
in a virtual directory under this one. But when I try to run it i get
the following error.

Description: An error occurred during the processing of a configuration
file required to service this request. Please review the specific error
details below and modify your configuration file appropriately.

Parser Error Message: File or assembly name Security, or one of its
dependencies, was not found.

Source Error:
Line 92:
Line 93: <httpModules>
Line 94: <add name="AuthenticationModule"
type="Security.AuthenticationModule, Security" />
Line 95: </httpModules>
Line 96: <httpHandlers>
Source File: c:\inetpub\wwwroot\web.config Line: 94

The error is coming from the web.config file from the root application,
but the application in the virtual directory has its own web.config. I
made sure that the directory was set as an application in IIS. Anyone
know how I can stop the application in the lower level from trying to
load the module from the root application?

[Adam Goossens]

Hi,

This question would probably be better asked in the ASP.NET newsgroup
since it doesn't really have anything to do with VB.NET coding. But,
I'll help you out as best I can anyway :)

As far as I know there is no way to prevent this (Web.config settings
stack as you go down the directory hierarchy).

In an attempt to mitigate it, however, you can use the <clear /> element
in your <httpModules> section to remove all the HttpModules that your
parent directories have loaded:

---
<httpModules>
<clear />
<httpModules>
---

There is also the <remove> element to remove individual types. Check out
the documentation on "httpModules element" in the Framework SDK.

Regards,
-Adam.

SirPyros wrote:

I am working on a web application, for which i created a custom
ihttpmodule to handle authentication. I am creating another application
in a virtual directory under this one. But when I try to run it i get
the following error.

Description: An error occurred during the processing of a configuration
file required to service this request. Please review the specific error
details below and modify your configuration file appropriately.

Parser Error Message: File or assembly name Security, or one of its
dependencies, was not found.

Source Error:
Line 92:
Line 93: <httpModules>
Line 94: <add name="AuthenticationModule"
type="Security.AuthenticationModule, Security" />
Line 95: </httpModules>
Line 96: <httpHandlers>
Source File: c:\inetpub\wwwroot\web.config Line: 94

The error is coming from the web.config file from the root application,
but the application in the virtual directory has its own web.config. I
made sure that the directory was set as an application in IIS. Anyone
know how I can stop the application in the lower level from trying to
load the module from the root application?