Allied Telesis NETEXTREME II AT-2973SX - Manual (Page 57)

AT-2973SX, AT-2973T, and AT-2973T/4 NetExtreme II Family Adapters Installation and User’s Guide
57
Checking Pre-installation Requirements
Before you can successfully install the NDIS2 driver software, you must do
the following:
 Physically install the network adapter in the server.
 Install the networking software that is appropriate to the operating
system (such as Microsoft LAN Manager 2.2 for MS-DOS). The
networking software must be running on your server.