Ref: 11640025
Title: Changing PRO.SYS to Enhance NetBIOS Applications
date: 6/1/89

Copyright 3Com Corporation, 1991.  All rights reserved.

In 3+ versions 1.2.x and 1.3.x, the ETH drivers were improved to
have PRO.SYS handle NetBIOS packets immediately instead of having
them work through the queue.

ETH checks the PRO.SYS internal version number to make sure that
it is greater than 3.0.  However, on the 3+ versions listed
above, the PRO.SYS internal version number is 3.0, which ETH does
not see as greater than 3.0.  The following steps explain how to
change the internal version number of PRO.SYS on these 3+
versions.

    Note:  This change applies only to full NetBIOS applications.
    It is especially helpful in an SNA gateway environment and
    may solve other NetBIOS-related problems.  It will not cause
    other problems with 3+ or other applications if done
    correctly.

1.  At the C:\> prompt, type DEBUG PRO.SYS and press [Return].

2.  Type D100 and press [Return].

3.  Type E 126 '1' and press [Return] to change the first byte
    from an ASCII 0 to a 1.

4.  Type D126 and press [Return] to ensure that the first byte is
    now 31H.

5.  Type W and press [Return] to save the change.

6.  Type Q and press [Return] to quit the DEBUG editor.

7.  Reboot the netstation to have the change take effect.
