Simple and practical rewrite URL (URLRewriter.dll), URLrewriter.dll can be downloaded from Microsoft's official website, comparing the old things
Probably record the method of implementation
Modify Web.cofing
To add a reference assembly within a <configuration> node
<section name="RewriterConfig" type="URLRewriter.Config.RewriterConfigSerializerSectionHandler, URLRewriter" />
</configSections>
重写URL <RewriterConfig>
<Rules>
<!--重写按年查询地址-->
<RewriterRule>
<LookFor>~/content_list_year,(\d{1,9}),(\d{1,9}),(\d{4})\.aspx</LookFor>
<SendTo><![CDATA[~/Test.aspx?bigtypeid=$1&smalltypeid=$2&postyear=$3]]></SendTo>
</RewriterRule>
<!--重写评论地址-->
<RewriterRule>
<LookFor>~/comment,(\d{1,9})\.aspx</LookFor>
<SendTo><![CDATA[~/comment.aspx?PostID=$1]]></SendTo>
</RewriterRule>
</Rules>
</RewriterConfig>
(Note: The overridden URL ends with an aspx, for example, if you want to enter a directory to achieve a URL rewrite to create a default.aspx in the directory (default file in IIS))
What I said may not be very detailed, look at the code provided by Microsoft.
Http://www.microsoft.com/china/msdn/library/webservices/asp.net/URLRewriting.mspx