ASP.NET MVC 1.0 - Error 404
===

A colleague of mine replaced by mistake a web.config file which we don't have in our back-ups and now an old MVC 1.0 site which we're running off IIS6 is showing 404 errors instead of the pages.

The current web.config looks like this:

    <?xml version="1.0"?>
    <configuration>
      <system.web>
        <httpHandlers>
          <add path="*" verb="*"
              type="System.Web.HttpNotFoundHandler"/>
        </httpHandlers>
        <!--
            Enabling request validation in view pages would cause validation to occur
            after the input has already been processed by the controller. By default
            MVC performs request validation before a controller processes the input.
            To change this behavior apply the ValidateInputAttribute to a
            controller or action.
        -->
        <pages
            validateRequest="false"
            pageParserFilterType="System.Web.Mvc.ViewTypeParserFilter, System.Web.Mvc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
            pageBaseType="System.Web.Mvc.ViewPage, System.Web.Mvc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
            userControlBaseType="System.Web.Mvc.ViewUserControl, System.Web.Mvc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
          <controls>
            <add assembly="System.Web.Mvc, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" namespace="System.Web.Mvc" tagPrefix="mvc" />
          </controls>
        </pages>
      </system.web>
    
      <system.webServer>
        <validation validateIntegratedModeConfiguration="false"/>
        <handlers>
          <remove name="BlockViewHandler"/>
          <add name="BlockViewHandler" path="*" verb="*" preCondition="integratedMode" type="System.Web.HttpNotFoundHandler"/>
        </handlers>
      </system.webServer>
    </configuration>

And there is a global.asax file that helps mapping routes to the appropriate .aspx pages (this hasn't been touched and was fully functional up to 1h ago).

Any idea on how to fix this?