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FIX: Session Integrator does not allow the "LogicalUnitName" property to be included in TN3270 connections

In Microsoft Host Integration Server 2009, Session Integrator does not allow connection strings for TN3270 connections to include the LogicalUnitName property.

For example, assume that you run the following statement:
sessionconnectiondisplay scd = new sessionconnectiondisplay() ...scd.LogicalUnitName = "LUname"...Sessiondisplay sd = new sessiondisplay()sd.connect(scd)
After you do this, the "LUname" data of the LogicalUnitName property is not passed to COM3270. Therefore, the TN3270 connection does not locate a specific LU or a Pool on the host or on the server that is running Host Integration Server.

Additionally, you can determine whether the connection string is invalid by running the following statement:
Sessiondisplay sd = new sessiondisplay()sd.connect ("instructions;LOGICALUNITNAME="LUname";instructions")

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may 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 immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.


To apply this hotfix, you must have Host Integration Server 2009 installed.

Restart information

You do not have to restart the computer after you apply this hotfix.

File information

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.

For all supported x86-basedversions of Host Integration Server 2009
File nameFile versionFile sizeDateTimePlatform
For all supported x64-basedversions of Host Integration Server 2009
File nameFile versionFile sizeDateTimePlatform
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about Session Integrator, visit the following Microsoft Developer Network (MSDN) Web site:

Article ID: 974456 - Last Review: 10/07/2011 16:33:00 - Revision: 2.0

  • Microsoft Host Integration Server 2009
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