You add one or more of the following Microsoft Host Integration Server 2009 Performance Monitor counters to the Performance MMC snap-in:

  • SNA 3270 Response Times

  • SNA Adapter

  • SNA Connections

  • SNA Logical Unit Sessions

However, the counters may stop recording data several minutes after the counters are added. If Performance Monitor is configured to the View Report mode, the SNA counters display dashes (---) instead of numeric values when this problem occurs. 


This problem occurs because the Host Integration Server SNA Performance Monitor counters are not reopened. If the counters were previously closed, the counters should be reopened when Performance Monitor requests additional data. 


Microsoft Host Integration Server

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: 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.


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

Restart requirement

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

Hotfix replacement information

This hotfix does not replace any other hotfixes.

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 32-bit version of Host Integration Server 2009

File name

File version

File size










For 64-bit version of Host Integration Server 2009

File name

File version

File size










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


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

If you want to monitor the Performance Monitor counter for the IP-DLC link service, follow these steps to display this counter in the Add Counters dialog in Performance Monitor:

  1. Open a command prompt with administrative permissions.

  2. Locate the %SNAROOT% folder. For example, the folder may be located under C:\Program Files\Microsoft Host Integration Server 2009\system.

  3. Type the following command, and then run it:


Note If you have multiple IP-DLC link services installed, you must run the command one time for each link service. If two IP-DLC link services were installed, the "snaip1" string should be replaced with "snaip2" (without quotation marks) for the second IP-DLC link service. 

After the PERFUTL command is executed, the Add Counters dialog box in Performance Monitor should include the following: 

SNA Adapter SNAIP1

If multiple IP-DLC link services are installed, there will be an additional counter for each IP-DLC link service.

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