Microsoft KB Archive/917416

= FIX: Applications may not be able to allocate LU 6.2 sessions after you install Host Integration Server 2000 SP2 or you upgrade to Host Integration Server 2004 =

Article ID: 917416

Article Last Modified on 12/4/2007

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APPLIES TO


 * Microsoft Host Integration Server 2004 Standard Edition
 * Microsoft Host Integration Server 2000 Standard Edition

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SYMPTOMS
After you install Microsoft Host Integration Server 2000 Service Pack 2 (SP2) or you upgrade to Microsoft Host Integration Server 2004, Advanced Program-to-Program Communications (APPC) or Common Programming Interface for Communications (CPI-C) applications may be unable to allocate LU 6.2 sessions.

This problem only occurs if the following conditions are true:
 * The Host Integration Server systems use dependent APPC LUs to communicate with the host system.
 * Duplicate Remote APPC LUs are defined on multiple host connections under a specific SNA Server service. In this case, the duplicate Remote APPC LUs have the same fully qualified LU name.

The exact symptoms that end users of the APPC or CPI-C applications experience may vary depending on the application. If the underlying APPC ALLOCATE verb sets the return control parameter set to AP_WHEN_SESSION_ALLOCATED, the application may appear to stop responding when the problem occurs.

If the application has been designed to cancel outstanding ALLOCATE or CMALLC verbs that have not completed after some time has passed, the application cancels the ALLOCATE verb and returns an application-specific error message.



CAUSE
This problem occurs because an issue was introduced by the hotfix that is described in Microsoft Knowledge Base article 837314. For more information about this hotfix, click the following article number to view the article in the Microsoft Knowledge Base:

837314 Dependent LU6.2 sessions may use the wrong LUs when multiple Remote LUs have the same LU alias



Host Integration Server 2000
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Note Because of file dependencies, the most recent hotfix that contains these files may also contain additional files.

Host Integration Server 2004
No hotfix is currently available for Host Integration Server 2004.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbbug kbfix kbqfe kbpubtypekc kbhotfixserver KB917416

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