FIX: You receive an InvalidOperationException exception when you validate data against complex schema that include the xs:union type in the .NET Framework 1.1

Notice
When you apply this hotfix, you are also applying the Microsoft .NET Framework 1.1 Post-Service Pack 1 XML Web services and XML Messaging hotfix rollup package 8. This hotfix is only contained in that package. For more information about this rollup package, click the following article number to view the article in the Microsoft Knowledge Base:
890673 Availability of the .NET Framework 1.1 Post-Service Pack 1 XML Web services and XML Messaging hotfix rollup package 8
This article has been archived. It is offered "as is" and will no longer be updated.
SYMPTOMS
In the .NET Framework 1.1, you receive an InvalidOperationException exception when you validate data against complex schema that include the xs:union type.
MORE INFORMATION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it 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 .NET Framework 1.1 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product 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.

Prerequisites

The Microsoft .NET Framework 1.1 Service Pack 1

Restart information

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix is not replaced by any later hotfix.

Hotfix file information

This hotfix contains only those files that you must have to correct the issues that this article lists. This hotfix may not contain of all the files that you must have to fully update a product to the latest build.

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 tool in Control Panel.
  Date         Time   Version        Size       File name   ---------------------------------------------------------------------   02-Dec-2004  21:55  1.1.4322.2051    573,440  System.web.services.dll   02-Dec-2004  21:55  1.1.4322.2051  1,355,776  System.xml.dll 
REFERENCES
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
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Article ID: 842832 - Last Review: 01/17/2015 10:45:49 - Revision: 2.1

Microsoft .NET Framework 1.1 Service Pack 1

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