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I'm having a hard time converting old .htaccess rewrite rules to new IIS ones so I was wondering if anyone could point me in the right direction. Below are some example URLs I would like rewriting.

Rewrites to


Rewrites to


Rewrites to

The directories and file names are generic and could be anything. Any help would be greatly appreciated.

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1 Answer 1

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Match URL only matches after the slash that trails the host - (.*) is common, and becomes {R:1} if you want to reuse the capture.

Host/domain name matches are done using {HTTP_HOST} in a condition. Conditions become {C:#}; multiple conditions can be confusing/complicated, I'm not sure how the numbering works precisely there.

Append querystring is usually a good option.

Looks like you want to preserve your host header, and rewrite host in response headers. The former is a applicationHost.config setting, or an appcmd change; the latter is in the GUI, or again can be touched in the .config file by hand, or using appcmd.

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