ID Number: Q64046
2.00
MS-DOS
Summary:
With MS-DOS versions 3.20 and later, the LASTDRIVE system setting
defaults to Drive E, and the DOS LAN Manager Setup program does not
change this setting. Therefore, NET USE fails on any letters after "E"
(F-Z). For example, if you try to access a letter after "E" with a NET
USE command, the following error message is displayed:
DOS Error 15 has occurred.
SYS0015: The system cannot find the drive specified.
The LASTDRIVE setting is located in the CONFIG.SYS file. Its syntax is
"LASTDRIVE=<drive>", where <drive> is a single letter from "A" to "Z."
Drive letters "A" through "E" are usually used for physical disk
drives such as floppy disks, hard disks, and RAM disks. The rest of
the drive letters "F" through "Z") are usually used for additional
disk drives such as network drives. To change the LASTDRIVE setting,
edit your CONFIG.SYS file and reboot your computer so that the changes
will take effect. Please note that every drive letter used consumes
some memory, so using LASTDRIVE=Z would use the most amount of memory.
For example, listed below is a CONFIG.SYS file in which the LASTDRIVE
statement was changed after DOS LAN Manager had already been
installed:
BREAK=ON
BUFFERS=20
FILES=20
LASTDRIVE=H
SHELL=C:\DOS\COMMAND.COM /P /E:256
DEVICE=C:\DOS\ANSI.SYS
INSTALL=C:\DOS\FASTOPEN.EXE C:=(50,25)
DEVICE=C:\DOS\HIMEM.SYS
DEVICE=C:\LANMAN.DOS\DRIVERS\PROTMAN\PROTMAN.DOS /i:C:\LANMAN.DOS
DEVICE=C:\LANMAN.DOS\DRIVERS\ETHERNET\UBNEI\UBNEI.DOS
DEVICE=C:\LANMAN.DOS\DRIVERS\PROTOCOL\NETBEUI\NETBEUI.DOS