Allied Telesis AT-2972T/2 - Manual (Page 100)

Chapter 8: Installing the NDIS2 Driver Software for MS-DOS Platforms
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A:\NET\NET START BASIC
net use z: \\SERVERNAME\SHARENAME
For NetBEUI
SET PATH=A:\NET
A:\NET\NET START BASIC
net use z: \\SERVERNAME\SHARENAME
5. Create a Config.sys file on the startup disk in drive A as shown below.
files=30
device=a:\net\ifshlp.syslastdrive=z