we have an asp.net mvc4 web application that uses umbraco for content. The asp.net mvc4 application has all its own controllers and views. Off the root we have all the normal "umbraco" folders:config, umbraco, umbraco_client, uerscontrols etc.

We have a web.config which has our own settings as well as umbraco specific settings like umbracoConfigurationStatus, umbracoReservedUrls etc.

There also seems to be an umbraco-specific section in web.config:

  <system.web.webPages.razor>

    <host factoryType="umbraco.MacroEngines.RazorUmbracoFactory, umbraco.MacroEngines" />

    <pages pageBaseType="umbraco.MacroEngines.DynamicNodeContext">

      <namespaces>

        <add namespace="Microsoft.Web.Helpers" />

        <add namespace="umbraco" />

        <add namespace="Examine" />

      </namespaces>

    </pages>

  </system.web.webPages.razor>

This doesn't seem to cause any problems for our existing mvc web app? I would think this might cause a problem.