Nested ASP.NET 'application' within IIS inheriting parent config values?

Question

I currently have 2 x ASP.NET 3.5 web applications in IIS7 (lets call them WebParent and WebChild).

WebChild is nested within the WebParent listing in IIS7 and is set

Answer 1

The exact solution to your problem will depend on what configuration exception message you are seeing. However, this is a typical problem that can often be solved through use of the inheritInChildApplications attribute on the location element in the web.config for "WebParent". By wrapping the entire system.web section in a location element as follows, you should be able to eliminate the problem you described:

With IIS 7, you will also want to wrap the system.WebServer section the same way:

This solution is based on an excellent blog article that I found here.