To add a virtual directory:
Login into control panel.
Click on the Domains option, present in left frame. In the main frame, existing IIS sites under the logged in user, will be displayed.
Click the site, for which you want to create a virtual directory. Virtual Directory Listing form will be displayed.
Click on the Add Virtual Dir button, Add New Virtual Dir form will be displayed, Fill the entries in the form.
Click on the Add Virtual Dir button, virtual directory will be added to the site.