Regular expressions in URL Rewrite Module for IIS7

Posted by TN on Stack Overflow See other posts from Stack Overflow or by TN
Published on 2010-03-16T17:32:27Z Indexed on 2010/03/18 5:51 UTC
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Filed under:

iis

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url-rewriting

|

regex

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web-applications

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web-development

I have following rewrite rule to append .aspx extension if url has no extension.

     <rule name="SimpleRewrite" stopProcessing="true">
         <match url="^(.*(?&lt;=/)([^/.]*))$" />
         <action type="Rewrite" url="{R:1}.aspx" />
     </rule>

However the rule is not working:

Error HTTP 500.52 - URL Rewrite Module Error.
The expression "^(.*(?<=/)([^/.]*))$" has an invalid syntax.

However, this regular expression works in .NET. What regular expressions are supported by IIS Url Rewrite Module? How to make positive lookbehind assertion?

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