auto create virtual directory when adding new site

Hi,

Apologies if this has been asked already, i've searched but have been unable to find an answer. 

When i create a new site in IIS 7 is it possible to set it up so that a virtual directory is created at the same time for each site?

Basically i need all sites to have a virtual directory mapped to E:\my_vir_dir, i can create these for the existing sites but whn i add a new one i would like the vir dir to be created with the site.

Possible?

Any help is much appreciated.

Luke