If your OS is Windows NT and you decide to install VIA_LAN drivers, 
the procedures are listed as follows.

1. From the Main group of NT, choose the Control Panel icon.
   From the Control Panel, double-click the Network icon.

2. Click the Adapters tab and click Add...

3. Insert the CD PRO and click Have Disk (CDROM:\LAN\VIA_LAN\WNT40)and press Enter.

4. Select "Realtek RTL8139 PCI Fast Ethernet Adapter" 
   from the list of available drivers and click OK.
   
5. Proceed according to the remaining prompts. 
   Click close to finish. If you have TCP/IP installed, a configuration window appears.

6. Close all windows in order to use the new driver and Restart Windows NT.