Add a windows folder to AirPort Extreme

Hi!

First of all: love this forum!

I currently have a macbook, a windows 7 computer & an AirPort Extreme setup. I have 2 external harddrives connected to the Airport for easy filesharing between the macbook and win7. What I was wondering is if I can add a win7 folder (e.g D:/music) to the Airport Extreme so I can access it on my macbook?

To the point I am wondering if it is possible to "map" a folder to the AirPort Extreme?

PS: I have the Airport Utility innstalled on my win7 machine!

I am thankful for any advice!

 

anyone?