Connecting an Android device to a Windows network Is it possible to connect my Android phone to my Vista network?

I want to add files in a shared folder which I can access over a wifi network on my phone.

I tried to add my phone to the network manually in the Network Center, but it didn't work.

A Google search didn't provide me anything useful. 

Note: 
When on the wifi network with my phone, I am on the same network as my Vista machine
Nice question I would be interested in the same. ES File Explorer looks like the app to do the trick.  Check this out...
http://www.techrepublic.com/blog/tablets/connect-android-to-windows-and-samba-shared-directories/1262