: Is there an API or programmatic way to convert ".htaccess" rewrites to "web.config" IIS Rewrites? I know I can do it in IIS Manager, but I am looking for some programmatic way to do it. We

@Becky754

There isn't a reliable programmatic way to automatically convert .htaccess files to web.config files because IIS's configuration is quite different from Apache's, as well as their configuration file formats.

There are some sites which claim to do automatic conversions, but the scope and accuracy of these are questionable.

You can however suggest that your client add an IIS module that uses standard regular expressions, since Apache's mod_rewrite module uses Perl Compatible Regular Expression vocabulary - see: Apache - mod_rewrite-Regular Expressions

One such module is ISAPI_Rewrite, which is written in pure C/C++. From their FAQ's:


ISAPI_Rewrite is a rule-based rewriting tool to rewrite requested URLs
on the fly. ISAPI_Rewrite uses regular expression rules. With regular
expressions you don't need to write a thousands check strings. The
comparison and replace of URLs can be done with a few string patterns.


Using regular expressions for IIS should help to greatly speedup conversions of Apache RewriteRule's.

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