1. 3c509b.zip Driver
2. W95NDIS3.TXT File Contents

W95NDIS3.TXT Driver File Contents (3c509b.zip)

                        3Com (R) Corporation
                     EtherDisk (R) Diskette for
                    The EtherLink III NIC Family
                 NDIS 3.0/4.0 drivers for Windows 95


The NDIS 3.0/4.0 drivers for Windows 95 are 32-bit protect-mode miniport
drivers.  The driver names are ELNK3ND3.SYS and ELNK3ND4.SYS.  These drivers
are replacement drivers for the Windows 95 native driver full port NDIS 3
driver, called ELNK3.VXD.  Both drivers work on all adapters in the 3C5X9
EtherLink III product family.   However, only the 3Com driver provides
installation support for the 3C509B-TPC NIC.

It's important to use the driver on this EtherDisk if you are either using
3Com's DRMON network management or desire to use PACE to obtain better
network performance to meet real-time needs.

Updating a Older Installation
-----------------------------
IMPORTANT: These instructions will only work if you are running Windows 95
Service Release 2 (build 950B) or later and if the NIC is in Plug n' Play
mode.  Otherwise you MUST remove the NIC from the Network Control Panel,
reboot your system and then go to step 2 in the first time installation
instructions below, in order to update your NIC drivers.

1.  Double-Click on the System Control Panel in your Control Panel Folder.

2.  Click on the Device Manager Tab at the top of the window.

3.  Double-Click on Network Adapters.

4.  Double Click on The 3Com EtherLink III NIC.

5.  Click the Check Box to Disable the NIC in this hardware profile.

6.  Click OK.

7.  A red X should appear on the 3Com EtherLink III NIC,
    Double Click on The 3Com EtherLink III NIC again.

8.  Click on the Driver Tab at the top of the Window.

9.  Click the Update Driver... button.

10. Select No, select driver from list, then click Next.

11. Click Have Disk..., Insert the 3Com EtherDisk for EtherLink III
    Family Adapters (Disk 1) into the A: drive and click OK.

12. Select the Card you have and then Click OK.

13. The installation will continue from there as if it was a First-Time
    Installation at step #5.

14. After the update procedure is over you must reboot your system to
    load the new driver.


First-Time Installation in an Existing Windows '95 computer.
------------------------
1.  IMPORTANT:  Install and configure Windows 95 BEFORE installing the
    NIC.  Failure to follow this instruction may result in using the
    NIC driver on the Windows 95 CD.

2.  Before installing the NIC, run the program PREINSTL on EtherDisk #2
    and follow the NIC installation instructions given by PREINSTL.

3.  Windows 95 will autodetect the NIC in the system and either present you
    with a menu of where to locate the driver or an installation wizard.  If
    Windows 95 does not detect a 3C509B NIC (because the 3C509B does not
    have Plug 'n Play enabled), open the control panel and press the Add New
    Hardware icon.

4.  Select Driver from disk provided by the hardware manufacturer from the
    prompt that appears. Then Press OK.

5.  Insert the 3Com EtherDisk #1 diskette in your floppy drive and then
    specify the correct drive letter at the prompt. If the diskette is in
    drive A:, then just press OK. You may need to do this twice during the
    installation.  Files will then be copyied from the diskette.

6.  Next, the 3Com installation program will run.  If the 3C509B has Plug
    'n Play enabled, you want the Microsoft TCP/IP protocol installed, and
    you have a DHCP server on your network, then choose Express installation.
    If one or more of the conditions above are not met or you need to change
    the NIC configuration, then choose Custom installation.

7.  When the installation program exits and more installation files have
    been read, Windows '95 will prompt you for the Windows '95 installation
    media.  Enter the correct location of the media.  For example, if the
    Windows '95 CD is located in the CD-ROM drive D:, then enter

        D:\WIN95

    Press OK

8.  Once the process of loading and configuring the network is complete,
    Windows '95 prompts for a shutdown and reboot. Press "Yes".  Windows 95
    will shutdown and reboot.  Windows will prompt you for your network log
    on name and password.  This name need not be the same name you selected
    as your computer name.

What To Do If Your Network Doesn't Work Properly
------------------------------------------------

If the network doesn't function correctly, check the network configuration
to see if the network has the proper components installed.  Check the device
manager to see if the NIC is functioning correctly.  To check the network
configuration, from the start button on the lower left, open the menu and
choose settings, control panel.  On the control panel, choose Network.

Examine the Configuration.  The default network setup for Windows '95 is the
following five components:  3Com EtherLink III driver, IPX/SPX compatible
protocol, NetBEUI protocol, Client for Microsoft Networks, and Client for
Novell Networks.  If you chose to install TCP/IP in the custom configuration
of the 3Com install, or you used the express install, then the TCP/IP stack
will also be present.  If any components are missing, you can add them by
pressing the add button.  Protocols can be added by pressing the "Add"
button on the network menu, choosing Protocol on the next screen, and
pressing the Add button.  On the "Select Network Protocol" screen, choose
Microsoft on the left pane.  On the right pane, choose the protocol and
press OK.  Similarly, the clients can be added by choosing the Client on the
"Select Network Component" screen and pressing the Add button.  On the
"Select Network Client menu, choose Microsoft on the left pane, the Client
on the right pane, and press OK.  If you use the Client for NetWare Networks,
press the Properties button on the "Network" screen.   Enter the name of the
NetWare server you want to use in the "Preferred server" box and press OK.

When the configuration is correct, press the Identification tab in the
"Network" screen.  The computer name is your computer name to the network.
Make sure this is the name you want to use to log into the network and
connect to your server.  The Workgroup name is the group you will be closely
associated with on the network if you use peer group networking.  Peers can
see each other when they look in the network neighborhood.  The Computer
Description is visible to other members of your workgroup when they see you
in the network neighborhood.

Now press the OK button, and the network will be configured the way you
chose in the last few paragraphs. At the completion of this step, Windows 95
will prompt you to restart the computer.  Press the "Yes" button.  After the
computer restarts, the network is ready to use.

To check if the NIC is working correctly, double click the "System" icon in
the  control panel, then press the "Device Manager" tab.  Under the "Network
adapters" item, look at the "3Com EtherLink III ISA ..." entry.  If the NIC
has either a yellow exclamation mark or a red "X" through it, the NIC is not
working properly.  This error needs to be remedied.

Removing the installation
-------------------------

The correct way to remove an installation is to open the network control
panel, choose the EtherLink III NIC, and press the Remove button.

If you attempt to remove the "3Com TCAAITDI Diagnostic TDI", the NIC will
be removed, which causes the rest of the network components to be removed.
Running the 3Com NIC diagnostic without support of the TDI will result in
the system locking up.  The TDI is not an optional component that can be
removed.

Changing the NIC configuration
------------------------------

Care must be exercised when altering the NIC configuration settings after
installation.  Certain configuration changes can alter the way Windows 95
behaves after reboot.

Altering the Plug 'n Play setting

Changing the Plug 'n Play setting after installation will change the way
Windows 95 views the NIC.  If you change the setting to enable Plug 'n Play,
then just shut down, power cycle, and reboot the computer.  Windows 95 will
see the NIC is in Plug 'n Play mode and change its internal configuration to
use the NIC in Plug 'n Play mode.  However, changing the setting to disable
Plug 'n Play mode will result in the NIC not being found on the next reboot,
which renders the network unusable.  To fix this, shut down Windows 95, power
cycle the computer, and reboot.  After the computer reboots, open the control
panel and select the add new hardware icon.  The add new hardware wizard
starts, press the next button. The next screen prompts for "Do you want
Windows to search for new hardware?".  Click the "No" radio button and press
next. In the next screen, double click the Network Adapters item. On the
Select Device panel, choose 3Com on the left pane and "3Com EtherLink III
(3C590/3C509B) in ISA mode" on the right pane. Put EtherDisk #1 in the
floppy drive and press OK on the insert disk message. The system will now
read files from the EtherDisk.  Later, the Windows 95 Add New Hardware Wizard
will display the I/O setting chosen for the EtherLink III.  Record this
number and press Next.  The 3Com installation diagnostic will run.  Press
Next on the first panel.  The second panel displays the NIC's configuration
settings.  Set the I/O base address to the number assigned by Windows 95
in the previous step.  Be sure the interrupt number chosen doesn't conflict
with another device in the computer. Press Next.  Continue the installation
until the "Installation Complete" screen appears, then press Finished. Now
press the Finish button on the Add New Hardware Wizard.  The System Settings
Change box will appear, prompting for a reboot.  Press the NO button.  Now
double click the network icon in the control panel. Select the "3Com EtherLink
III ... in PnP mode" and press Remove. Press the OK button on the Network
dialog box that pops up, then press the OK button on the Network configuration
menu.  Close the control panel, then shut down and reboot the system.  Your
network is now operational.


Hints
-----
1.  If an error message appears, saying that the .INF file cannot be found
    in the specified location, verify that the file actually exists. The
    file is in the root directory of the 3Com EtherDisk diskette #1. The
    filename is W95EL5X9.INF.

    If it is missing, download the disk from 3Com's download sites, and
    make sure you expand it properly. Refer to the SUPPORT.TXT file on this
    disk for more information.

2.  Verify the NIC driver is working.  Open control panel, system, device
    manager.  Look at the network adapter.  If the EtherLink III NIC is
    visible with a yellow exclamation mark, the driver was not able to
    get the NIC working.  This could be due to a resource conflict, i.e. the
    base address or interrupt is in conflict with another device or there is.
    another device at I/O address 0x110.

    If the EtherLink III NIC is visible with a red 'X', Windows 95 detected
    a problem that it considered very serious.  One example is all the
    interrupts were used prior to the NIC installation, so Windows 95
    cannot assign an interrupt to the NIC.


Windows '95 Peer-to-Peer Networking
-----------------------------------

General Overview

In a peer-to-peer network, a relationship exists between two or more "like"
computers.  Each computer may make portions of its devices (such as disk
drives, CD-ROM driver, and printers) available to other computers on the
network.  You can decide what to make available to other users.  When you
share a disk driver or folder, you also need to decide if you want to grant
other users the right to store and change information on your drive or
folder.

The general characteristics of a peer-to-peer network are:

The network provides the capability to share resources with any computer on
the network.  When you share resources, your computer acts as a server for
all other computers in the network while still retaining all it's capability
for your use.  In a server-based network, only the resources on the
dedicated server can be shared.

A peer to peer network is more difficult to administer than a server-based
network. Its flexible resource-sharing and lack of central management and
control make management difficult.

However, the network works with your existing equipment and does not require
the purchase of a dedicated server.  This lowers the cost of networking.


Peer-to-Peer Networking with Windows '95

Microsoft Windows '95 comes with a built in peer to peer network.  It
also supports a wide range of network environments and Network Software
vendors to work with dedicated networks.

To configure Windows '95 for peer-to-peer networking, follow the steps
below.

Install Windows '95 and configure the network as outlined in the previous
instructions in this document.  To use peer to peer networking, you must have
the Microsoft Network Client in your network configuration.

Before you can share resources on your computer, you need to add file and
print sharing capability to your network configuration.  To install file and
print sharing, do the following steps.

1.  Open the Control Panel window and select Network. Click on the Start
button on the Windows '95 Taskbar, select Settings, and then select Control
Panel. Double-click on the Network icon.

2. In the Network window, click Add...

3. Select Service from the list of Network Components and click Add...

4. Select Microsoft from the list of Manufacturers on the left column.

5. Select File and Printer Sharing for Microsoft Networks from the right
column.

6. Click OK.

7. Go back to the Network window and select the Identification tab.

8. Assign a Computer name that will identify you on the network.  This name
must be unique.

9. Assign a Workgroup name.  The workgroup name must be the same on all the
computers on your network whom you want to share information with.  More
than one workgroup may exist on a network, but members of a workgroup cannot
directly see members of a different workgroup.

10. Give a description of your computer. This description is what another
users sees when he browses the network from his computer.  It further
defines who you are on the network.

11.  When you are done entering this information click OK.

12. Click OK at the bottom of your Network window. Windows '95 will prompt
you for the location of the Windows '95 CD-ROM or diskettes containing the
files needed for sharing.  Assuming the CD-ROM is drive D: on your computer,
enter D:\WIN95.

13.  When Windows '95 prompts you to shut down and reboot the computer,
click the Yes button.  After Windows '95 reboots, you are ready to share
resources.

14.  You can share a device by opening "My Computer" on your desktop and
clicking the right mouse button over each device you want to share.  From
the menu that appears, select "Sharing" properties for the device.  From
the menu that appears, pick a share name for the device, and click OK.  The
device is now shared.

15.  In a similar manner, you can share folders rather than an entire disk
drive.  Select a drive and click the left mouse button to open the drive.
Select the folder and click the right mouse button, and select "Sharing"
from the menu.  When the share menu opens, select a share name and select
the way you want to share the folder.  Read only means no user can write or
delete the files and folders in your shared folder.  Selection read and
write access gives other users permission to delete or change files and
folders.  For more detail, refer to your Microsoft Windows '95 manual on how
to share resources with other computers on your network.



            (%VER W95NDIS3.TXT - NDIS 3.0 in Windows 95 v6.0d