What should I write in uri Section in web config file

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XML

web_development

The configuration section 'uri' can not be read because it is missing a section declaration on line 133

The above error I am getting while I try to do directory browsing through IIS 6

This is what is written in the uri section
line 133

<uri>

   
    <!-- The uri section is necessary to turn on .NET 3.5 support for IDN (international domain names),
             which is necessary for OpenID urls with unicode characters in the domain/host name.
             It is also required to put the Uri class into RFC 3986 escaping mode, which OpenID and OAuth require. -->
    <idn enabled="All" />
    <iriParsing enabled="true" />
  </uri>

The Other Options available in uri section are:
<schemeSettings lockItem="false"/>
<schemeSettings lockElements="false"/>
<schemeSettings lockAttributes="false"/>
which I have not written, What should I write in this section Please give a example with demo data.