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A hotfix is available that improves the DB2 adapter in Host Integration Server 2009 to support DB2 no delay TCP connection feature startup

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This hotfix improves the DB2 adapter in Microsoft Host Integration Server 2009 to support the "no delay TCP connection startup" feature. After you apply the hotfix together with the related registry settings, you are able to initiate TCP/IP connections without incurring in a delay when the server responds to client requests. 


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: 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.


There are no prerequisites to apply this hotfix.

Restart requirement

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

Hotfix replacement information

This hotfix does not replace any other hotfixes.

Registry setting

Locate to the following registry entry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Host Integration Server\Data Integration\Add the name TcpNoDelay to the subkey, set the data type to the REG_SZ data type, and then set the value to Yes.

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.


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

More Information

For more information about no deley TCP connection feature, visit the following Microsoft Developer Network (MSDN) website:

No delay TCP connection function

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