Hi @Meh ,
Shouldn't the URL Rewrite rule be in your web.config file? you should check the web.config file in your project, not applicationhost.config.
ApplicationHost.config is the root file of the configuration system when you are using IIS 7 and above. It includes definitions of all sites, applications, virtual directories and application pools, as well as global defaults for the web server settings.
The location of web.config is C:\inetpub\wwwroot\web.config
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