Intended purpose:
Site A and Site B share the same picture folder C
The implementation is as follows:
Add a virtual directory under a site to point the virtual directory to a shared folder
The pages under the site use images to access the way:
<image src= "C/1.png"/>
Where c is a virtual directory
The site layout for IIS is as follows:
--Website
----Default Web Site
------Application A http://localhost/A/index.html
--------Virtual directory C points to D:\www\C
------Application B http://localhost/B/index.html
--------Virtual directory C points to D:\www\C
Or
--Website
----Default Web Site
----Site A http://localhost:8081/index.html
--------Virtual directory C points to D:\www\C
----Site B http://localhost:8082/index.html
--------Virtual directory C points to D:\www\C
IIS is using virtual directories to access the shared (Pictures) folder from a multi-site