inherit In Child Applications

You can add the <location> element with the “inheritInChildApplications” attribute to the root web.config. This attribute will prevent child applications inherit some specified configuration from the root web.config.

The attribute must be placed in the <configuration> section of the web.config. It looks like this:

<location path="." inheritInChildApplications="false">
  <system.web>
    <!–
      ……
      Your settings
    –>
  </system.web>
</location>

Referance:

SectionInformation.InheritInChildApplications Property