I recently found myself trying to set up a server to act as a bridge to get wireless from the hotel into my room and to a switch. I already had Server 2008 installed on a box running HyperV and thought it should be no trouble to plug in my wireless card and bridge the network.
Long story short: Wireless LAN 'Feature' is disabled by default. To enable it, go to Server Manager > Features > Wireless Lan Service.
Here is the link that led me to this: http://vspug.com/yazan/2008/02/21/windows-server-2008-wirless-connection/
Note the consistent inconsistency by Microsoft as this is called a service in the list of features.