How to redirect non-existent .html files to mvc3 routes? - seo

Question

This is probably a duplicate, but my Google-foo is off or something, because I cannot find the answer to this simple question.
I have moved an old site to MVC3 on IIS7.5 and I need to redirect some old .html extension urls to new MVC Controller Actions.
I added URL mappings.
<urlMappings>
<!-- Doesn't work -->
<add url="~/OldUrl.html" mappedUrl="~/NewController"/>
<!-- Works but is rewrite instead of redirect -->
<add url="~/OldUrl.aspx" mappedUrl="~/NewController"/>
</urlMappings>
The above is not working for 2 reasons. First, the .html extension doesn't get re-mapped and second, the .aspx extension gets re-mapped rather than rewritten.
I tried to add the StaticFileHandler because I thought maybe the .HTML extension was being ignored by .NET but in fact that handler was already there.
I don't have access to IIS Management Tools because it is in shared hosting, but I should be able to just add something to the web.config to get these to redirect.

Answer 1

Finally figured it out:
<system.webServer>
<!-- The RewriteModule may need to be added if it isn't
already included in machine.config or application.config
<modules>
<add name="RewriteModule" />
</modules>
-->
<rewrite>
<rules>
<rule name="Redirect1">
<match url="^OldUrl.html$" />
<action type="Redirect"
url="/NewController"
redirectType="Permanent" />
</rule>
<rule name="Redirect2">
<match url="^OldUrl.aspx$" />
<action type="Redirect"
url="/NewController"
redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>