A Session Level Interface (SLI) application that issues an SLI_SEND verb to send a Request Recovery (RQR) command does not receive any further data from an IBM mainframe application in Host Integration Server 2006. The symptoms that you experience vary, depending on the SLI application. In some cases, the SLI application stops responding if the application is designed to wait for an expected response from the IBM mainframe application. In addition, HIS administrators may notice that the Logical Unit Application (LUA) LUs defined in SNA Manager show an In Session status until the LUs are manually stopped by SNA Manager or by an IBM mainframe administrator.
This problem is related to the issue described in the following Knowledge base article:
971669 FIX: A Session Level Interface (SLI) application may stop responding after starting session recovery by issuing a SNA Request Recovery (RQR) command in Host Integration Server 2006
The SLI library (Winsli32.dll) does not set the correct flags in the SNA Request Header (RH) when the SLI application sends the RQR command. Namely, the RQR command that is sent by the SLI application does not have the definite response requested flag set. Therefore, the IBM mainframe does not respond to the RQR command. The session recovery requested by the RQR command cannot continue without a response to the RQR command. This prevents any further processing of the LU being used by the SLI application.
Host Integration Server 2006
To resolve this problem, obtain the latest service pack for Host Integration Server 2006. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
979497 How to obtain the latest Host Integration Server 2006 service pack
A supported hotfix is 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 the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
You must have Host Integration Server 2006 installed to apply this hotfix.
You do not have to restart the computer after you apply this hotfix.
Hotfix Replacement Information
This hotfix does not replace any other hotfixes.
The English version of this hotfix has the file attributes (or later) 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 tool in Control Panel. 32-bit (x86) version
64-bit (x64) version
The SLI application uses an SLI_SEND verb to issue the RQR command. The SLI_SEND verb can be defined to set the flags in the RH to correctly format the RQR command to request a definite response. The following fields in the lua_rh parameter of the SLI_SEND verb should be set to 1 to correctly format the RQR command: