How can I use multiple NICs on Windows Server 2008 function as a switch

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http://serverfault.com – I have a win2008 Server with 4 network ports (A,B,C and D) where only 1 port A is connected to the LAN ( The other 3 ports (B,C and D) are not in use. I have another PC want to join the same LAN( by connecting the pc's network port P to one of those 3 unused network ports (I am using network port B in this case) on win2008 server. The PC network connection is set to DHCP. I read about "network bridging", "network card teaming(for win2012)" and "Internet Sharing" but none of those works: Bridging: I tried to bridge the network port A and B but the "bridged net (HowTos)