Install Intel Network Drivers for Windows NT 4.0 manually

1. Click the Network icon in the Control Panel. 

2. Go to the Adapters tab and click Add. 

3. Don't select an Intel adapter from the list. Instead, click Have Disk. 

4. Enter the path to {CD-ROM Drive}:\Drivers\Lan, in the "Install from Disk"
   window and click OK. 

5. Follow the instructions to install the drivers. When the adapter is added,
   it appears in the Network adapters list.

6. Click OK and then Close. When prompted, restart Windows NT.