Using DLC Interface with IBM PC Lan's NetBIOS Stack & DOS LM

ID Number: Q68426

2.00

MS-DOS

Question:

I am running the IBM PC Lan Program for DOS, and the Microsoft DOS LAN

Manager. I also have a program that needs to use the DLC layer for the

MS-DOS machine in order to connect to a mainframe. I understand that

the current version of DOS LAN Manager (version 2.00b) does not expose

a DLC interface. How can I run DOS LAN Manager on top of IBM's NetBIOS

Stack?

Response:

It is true that DOS LAN Manager version 2.00 does not currently expose

the DLC interface, but it has been confirmed that DOS LAN Manager

version 2.00 will run on top of IBM's NetBIOS Stack.

The IBM PC Lan program will install the following in your CONFIG.SYS

file:

DEVICE=C:\PCLP\DXMA0MOD.SYS

DEVICE=C:\PCLP\DXMC1MOD.SYS

DEVICE=C:\PCLP\DXMT0MOD.SYS O=N ST=10 S=25 C=22 ES=2 EST=2

IFS=C:\PCLP13BS\REDIR.SYS

INSTALL=C:\PCLP13BS\IFSFUNC.EXE

The following steps can be used to get DOS LAN Manager version 2.00 to

use the DLC layer:

1. Install DOS LAN Manager as usual.

2. During the install process, select the protocol stack you want to

use.

3. After exiting DOS LAN Manager, remove any instances of device

drivers from CONFIG.SYS for DOS LAN Manager.

4. Remove both the "IFS=" line and the "INSTALL=" lines from your

CONFIG.SYS file. It is not necessary to load the IBM Lan Requester.

At this point, your CONFIG.SYS file should look like the following:

DEVICE=C:\PCLP\DXMA0MOD.SYS

DEVICE=C:\PCLP\DXMC1MOD.SYS

DEVICE=C:\PCLP\DXMT0MOD.SYS O=N ST=10 S=25 C=22 ES=2 EST=2

5. Remove NETBIND from your AUTOEXEC.BAT file since there is nothing

to bind now.

Since the Protocol Manager is not loaded, NETBIND is not needed and

the contents of PROTOCOL.INI are irrelevant.

Microsoft has confirmed that this configuration works correctly.