asp.net - How to allow anonymous user access to virtual directory -

i preventing anonymous users access root application.

/web.config

  <system.web>     <authorization>       <deny users="?" />     </authorization>   </system.web> 

but allowing anonymous access public resources (images, css, etc.):

  <location path="images">     <system.web>       <authorization>         <allow users="*" />       </authorization>     </system.web>   </location> 

now, add virtual directory should accessible anonymous users. added configuration based on images path, whenever try access location, redirected login page returnurl set virtual directory.

  <location path="virtualdirectory">     <system.web>       <authorization>         <allow users="*" />       </authorization>     </system.web>   </location> 

in addition, tried specify global authorization within virtual directory's web.config error saying can have once

/virtualdirectory/web.config:

  <system.web>     <authorization>       <allow users="*" />     </authorization>   </system.web> 

how can allow anonymous access virtual directory when root application preventing anonymous access?

in global web.config encapsulate the

<system.web>   <authorization>     <deny users="?" />   </authorization> </system.web> 

with

<location path="." inheritinchildapplications="false">   <system.web>     <authorization>       <deny users="?" />     </authorization>   </system.web>    </location> 

it means - authorization enforced in root app, not child apps.