Running an ASP.NET 2.0 Application Inside an ASP.NET 4.0 Site
PROBLEM:
You have an ASP.NET 4.0 website running. Within that folder structure you would like to include a separate application that is built on ASP.NET 2.0. The solution is in the web.config file.
SOLUTION:
Below is how the web.config will need to be structured:
<location allowOverride="true" path="." inheritInChildApplications="false">
<system.web>
...
</system.web>
</location>