Question : C# code not being called for special URLs in my website

The website I'm working on has a feature where a user can define URL shortcuts to pages on the website, so for example:

http://mywebsite/search

might be a shortcut to

http://mywebsite/admin/home/special/search.aspx

This feature is working on the QA server, but I can't get it to work on my local dev machine, instead it just gives me a 403.14 - forbidden - the web server is configured to not list the contents of this directory

Clearly I don't want to list the contents of a directory, I want my C# class that handles incoming URLs to check the URL passed, check to see if it is a short cut and redirect to the mapped page.

So there is something not set on my website to tell it to run my C# code - but what is it?

Answer : C# code not being called for special URLs in my website

Sorry to waste your time.  It turns out I was not typing in the correct URL.  I mean I wasn't adding /owa or /exchange to the end.  This behaviour is expected.  I didn't realize.  This article explains it: http://blogs.technet.com/b/isablog/archive/2008/04/29/troubleshooting-owa-2007-publishing-rules-on-isa-server-2006.aspx.  I don't know why that was so hard to figure it.  Anyway thanks for your help.