If I've got a site:

world wide web.mysite.com

along with a virtual directory/application

world wide web.mysite.com/site2

along with a request a webpage

world wide web.mysite.com/site2/page1.aspx

Can I've got a 404 handler see if the page doesn't appear in the virtual directory for everyone it in the root site? Wouldso would this be completed in IIS7?