On my Windows 7 machine I go into Windows Explorer\Network
I get a list of computers.
I click on the Windows 2008r2 Server, then I see a list of its shared drive mappings.
Some of the drive mappings are live and still available and some are ghost drive mappings that no longer exist. The ghost drive mappings were previously being shared by the Windows 2008r2 Server, but the drives have been removed but the mappings still show up.