Ref: 09330065
Title: Caveat Using Windows 3.0 on 3Stations and PCs with Start PROMs
date: 2/18/91

Copyright 3Com Corporation, 1991.  All rights reserved.

On a PC with an EtherLink adapter and a Start PROM, after the start volume
is booted and Window 3.0 is run in 386 Enhanced mode, executing the DOS
icon to get a DOS prompt gives the error:

    Not ready error reading drive C.  Invalid COMMAND.COM.
    Cannot load COMMAND, system halted

The workstation must be cold booted to run again.  (Note:  Booting with a
floppy disk on the same machine works fine.)

The problem occurs because Windows tries to create temp files on the C
drive by default, which is read-only.

To avoid this, add the following line to your AUTOUSER.BAT file:

        SET TEMP=E:\

Then all Windows temporary files will be created on the E drive and
you should be able to go to DOS.

