title: IIS fails with 500 response code
body: <p>I've faced with request (/[13:49:32]:й) that leads IIS to fail with 500 error. It contains non-ASCII symbols so I've expected that disabling <a href="https://www.iis.net/learn/manage/configuring-security/use-request-filtering" rel="nofollow noreferrer">High Bit characters</a> should fix it but it doesn't. It seems that [13:49:32] part influences on rewrite module or something else since it tries to load web.config file from another location (\?\E:\sitesroot\0[13:49:32]:й\web.config).</p>
  
  <p>I'm not an expert in IIS but as I understand from poor search results and that stackoverflow also has such issue <a href="https://stackoverflow.com/[13:49:32]:%D0%B9">https://stackoverflow.com/[13:49:32]:й</a> it is not a well-known issue. So I need some help from IIS guru to fix these errors (replace them with 400).</p>
  
  <p><a href="https://i.stack.imgur.com/WIqGX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WIqGX.png" alt="enter image description here"></a></p>