FIX: Some Business Rule Engine values in the Windows registry are reset to the default values in BizTalk Server 2004

When you install or uninstall a Microsoft BizTalk Server 2004 hotfix, some Business Rule Engine values in the Microsoft Windows registry are reset to the default values. When the Business Rule Engine values are reset to the default values, you may experience decreased performance in BizTalk Server 2004.

Consider the following scenario. Your BizTalk Server 2004 configuration uses many business rules to process messages. You modify the CacheEntries value in the Windows registry from the default value of 32 to a value of 512. You do this to improve performance and to enable BizTalk Server 2004 to cache more business rules. Then, you install a BizTalk Server 2004 hotfix. You examine the CacheEntries value in the Windows registry. In this scenario, the CacheEntries value is the default value of 32. When this problem occurs, you may experience decreased performance in BizTalk Server 2004.

Hotfix information

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 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 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.

Prerequisites

You must have BizTalk Server 2004 Service Pack 1 (SP1) installed to install this hotfix.

Restart requirement

You do not have to restart the computer after you install 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.Notes

• To install this hotfix, unzip the hotfix package, and then run the Setup.exe file in the folder where the extracted files are located. You do not have to run any additional SQL scripts.
• This hotfix does not contain a .dll file or an .exe file. The Microsoftbiztalkserver2004qfepatch30.msp file contains the hotfix.
• Because of file dependencies, the most recent hotfix that contains these files may also contain additional files.

To work around this problem, manually modify the values in the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\BusinessRules\3.0 registry key.

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

After you install this hotfix, the following Business Rule Engine values in the Windows registry are not modified when you install or uninstall a BizTalk Server 2004 hotfix:

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\BusinessRules\3.0\CacheEntries
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\BusinessRules\3.0\CacheTimeout
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\BusinessRules\3.0\PollingInterval
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\BusinessRules\3.0\TranslationTimeout
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\BusinessRules\3.0\CachePruneInterval

For more information, click the following article number to view the article in the Microsoft Knowledge Base: