Win-Old:

REGEDIT4

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"TcpTimedWaitDelay"=dword:0000001e
"MaxUserPort"=dword:0000fffe


Win 7, 2008:

netsh int ipv4 set dynamicportrange protocol=tcp startport=1025 numberofports=64508 store=persistent
netsh int ipv4 show dynamicportrange protocol=tcp