Microsoft KB Archive/185604

= Windows 3.x Client Returns One Local APPC LU Using Display Verb =

Article ID: 185604

Article Last Modified on 5/18/2005

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APPLIES TO


 * Microsoft SNA Server 3.0 Service Pack 4
 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 3.0 Service Pack 2
 * Microsoft SNA Server 3.0 Service Pack 3
 * Microsoft SNA Server 4.0

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This article was previously published under Q185604



SYMPTOMS
In an SNA Server subdomain that contains multiple SNA Server computers, a 16-bit APPC application that uses the DISPLAY function to retrieve the list of APPC LUs may not get a complete list of all the available APPC LUs in the subdomain. The APPC application shows only the available APPC LUs from one of the SNA Server computers in the subdomain. If there is only one SNA Server in the subdomain, the DISPLAY function appears to function correctly.

Although this was reported when using the 16-bit ODBC Driver for DB/2 included with SNA Server, other 16-bit APPC applications that use the DISPLAY function to retrieve the list of available APPC LUs may also experience the problem.



CAUSE
The APPC application must issue the DISPLAY function once for every SNA Server computer in the subdomain to retrieve all of the available APPC's LUs. The problem occurs because the 16-bit DMOD always sends the DISPLAY function request to the same SNA Server computer. This occurs because the 16-bit DMOD ignores the SNA Server name that the application specified in the DISPLAY function.



STATUS
Microsoft has confirmed this to be a problem in SNA Server versions 3.0, 3.0 SP1, 3.0 SP2, and 3.0 SP3. We are researching this problem in versions 3.0, 3.0 SP1, 3.0 SP2, and 3.0 SP3 and will post new information here in the Microsoft Knowledge Base as it becomes available.

Microsoft has confirmed this to be a problem in SNA Server version 4.0. This problem has been corrected in the latest U.S. Service Pack for SNA Server version 4.0. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Keywords: kbbug kbfix KB185604

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