virtualbox share folders ubuntu 11.10 host windows 7 guest

I am running windows 7 as virtual machine on my ubuntu laptop using virtualbox software. I wanted to share my ubuntu folders with virtual windows 7.

steps to do it:

1. install samba on your ubuntu.
2. right click on the folder to share from ubuntu.
3. click on "sharing options"
4.check all boxes on new pop up window.
5. open virtual windows 7 in non-full-screen mode.
6. on the left top corner you will find "devices" drop down menu
7. under this menu click "shared folders"
8. on right side of the new window, click add folder option(+ symbol)
9. choose the folder you want to share from ubuntu.
10. restart your virtual windows 7.
11. when restarted, you should be able to see the shared folder in your windows 7 "computer" folder.

NOTE: one must prerequisite for above to work is you should have installed guest additions on your virtual machine.