How to find location of .ashx files on server

Question

Background: My employeer at my non-programming job knows that I am an undergraduate CS student with some experience in web development. He has severed ties with the previous web developer he hired after a sour experience, and he's paying me to make several changes to the site. One of these tasks is to take make a new form on the site that behaves similarly to a form that already exists, with some modifications. My major barrier is that the site was made using ASP.NET, which I have never used before, but after reading through some W3 tutorials, I was able to understand the existing form and the structure of its submission, and I'm fairly confident in my ability to duplicate it.

Issue: There's an important function call that I need to access and edit that takes place in a .ashx file that I cannot find on the server. The file is referenced as being located in ~/ajaxpro/Business,App_Code.ashx in the headers of the .aspx pages, and I can navigate to that page in my browser, but there is no actual /ajaxpro/ folder on the server. From what I could glean from Google searches, I guess this may have something to do with this code in Web.config:

<location path="ajaxpro">
    <system.web>
      <httpHandlers>
        <add verb="*" path="*.ashx" type="AjaxPro.AjaxHandlerFactory,AjaxPro.2" />
      </httpHandlers>
    </system.web>
</location>

But I've looked through all the other folders on the server, and can't locate any .ashx files at all. There is a Business.cs and an App_Code folder on the server, but I couldn't find any code that would relate to what's showing up on the ~/ajaxpro/Business,App_Code.ashx page. Not sure if this is part of my .NET naiveté, or what, but I'd like to know if it's possible to locate and access these files.

Question: Is there any way for me to locate this .ashx file so that I can edit it, and if so, how would I want to go about discovering its actual location?

Answer 1

The ASHX file doesn't actually exists on the file system.

The config section you have listed tells IIS to process any request for *.ashx extension under the ajaxpro directory using the assembly AjaxPro2.

Basically the Ajaxpro2 assembly contains a handler that decides what it needs to output, in the case above the Factory Class AjaxHandlerFactory will handle all responses.

The short answer is you can't edit the output for the ASHX file without access to the AjaxPro2 assembly code.