You are the administrator of your company’s network. The network is configured as shown in the exhibit.  You want to install Windows 2000 Professional on 10 non-PXE-compliant computers on the marketing segment of your network. The 10 computers do not have operating systems installed. You attempt to load the computers by using an existing RIS image that is on the RIS server. You find that the 10 computers cannot connect to the RIS server. You verify that existing client computers on the network can connect to network servers， including the RIS server. You then check the network servers and find that the Windows NT Server 4.0 computer running WINS has stopped responding due to hard disk failure. You want to enable the computers to connect to the RIS server.   What should you do？（　）