Example of Configuration for

Question

I have a Web Application in Asp.Net 4 running locally on IIS 7. I need display a Custom Page (404) and an 500 instead for the defaults page for IIS. Using this httpErrors in

Answer 1

Here is an example, hope it helps

<system.web>
<customErrors mode="RemoteOnly" defaultRedirect="default.aspx">
<error statusCode="404" redirect="~/ErrorPages/404.htm"/>
<error statusCode="500" redirect="~/ErrorPages/505.htm"/>
</customErrors>
</system.web>

Edit for comments: Here's the example I think you need

<configuration>
   <system.webServer>
      <httpErrors errorMode="DetailedLocalOnly" defaultResponseMode="File" >
         <remove statusCode="500" />
         <error statusCode="500"
            prefixLanguageFilePath="C:\Contoso\Content\errors"
            path="500.htm" />
       </httpErrors>
   </system.webServer>
</configuration>

http://www.iis.net/ConfigReference/system.webServer/httpErrors/error

Answer 2

I solved my problem with this.

<httpErrors errorMode="Custom">
    <remove statusCode="404" subStatusCode='-1' />
    <remove statusCode="500" subStatusCode='-1' />
    <error statusCode="404" path="/404.aspx" prefixLanguageFilePath="" responseMode="ExecuteURL"  />
    <error statusCode="500" path="/500.aspx" prefixLanguageFilePath="" responseMode="ExecuteURL" />
  </httpErrors>

This needs to go in Web.config, under <configuration> > <system.webServer>

e.g.

<configuration>
    <system.webServer>
        <httpErrors ...>
            // define errors in here ...
        </httpErrors>
    </system.webServer>
</configuration>