Microsoft KB Archive/927587

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FIX: When you try to import a policy into a BizTalk group in BizTalk 2006, you receive the error message: "Could not load policy file 'PolicyFileName.xml'"

Article ID: 927587

Article Last Modified on 11/15/2007


  • Microsoft BizTalk Server 2006 Standard Edition
  • Microsoft BizTalk Server 2006 Enterprise Edition
  • Microsoft BizTalk Server 2006 Developer Edition


When you import a policy that is created in Microsoft BizTalk Server 2004 into a BizTalk group in Microsoft BizTalk Server 2006, you receive the following error message:

Could not load policy file 'PolicyFileName.xml'
Comparison operator "Microsoft.RuleEngine.Equal" cannot compare a value of type "System.Object" with a value of type "System.String"

This issue occurs if the .xml file that you want to import contains an EQUAL predicate between objects and strings.

This issue may also occur when you try to access a policy in Business Rule Composer after you upgrade from BizTalk Server 2004 to BizTalk Server 2006. In this situation, the policy must exist in the database before the upgrade.


A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that this article describes. Apply this hotfix only to systems that are experiencing this specific problem.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

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.

File name File version File size Date Time Platform
microsoft.ruleengine.dll 3.5.1632.0 969,512 03-Nov-2006 01:13 x86

Note Because of file dependencies, the most recent hotfix 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.


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

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbtshoot kbexpertiseadvanced kbhotfixserver kbqfe kbfix kbbug kbpubtypekc KB927587